The Sensitivity of a Camera's Sensor: ISO and its Effects

A camera's sensor is a crucial component that determines the quality of an image. One of the key factors that affect the sensor's sensitivity is the ISO setting. ISO stands for International Organization for Standardization, and it measures the camera's sensitivity to light. The higher the ISO setting, the more sensitive the sensor becomes to light, but there are also some drawbacks to consider.

When you raise the ISO setting, the sensor becomes more sensitive to light, which can result in brighter images. However, continuously raising the ISO can lead to grainy pictures, as the camera's ability to capture detail is compromised. DSLRs tend to perform better than point-and-shoot cameras when it comes to handling high ISO settings. While low-end point-and-shoot cameras may struggle with ISOs above 400, high-end point-and-shoot cameras can handle ISOs up to 800 or even higher. In contrast, DSLRs can take great pictures at ISOs as high as 3200 or even 6400.

The Sensitivity of a Camera's Sensor: How Aperture Works

Another crucial factor that affects the quality of an image is aperture. Aperture refers to the amount of light that enters the lens and ultimately reaches the sensor. A lens with a large aperture opening (such as f/1.4) can let in more light, while a small aperture opening (such as f/16) allows less light to enter. The aperture also affects the depth of field, which is the area in focus within the image.

To illustrate the effect of aperture, imagine taking the same picture with different aperture settings. For example, take a photo at an aperture setting of 12, then again at 5.6, and finally at 1.8. You'll notice that each shot produces a distinct effect, depending on how much light is entering the lens and ultimately reaching the sensor. The aperture can be adjusted to control the amount of light that reaches the sensor, allowing photographers to achieve specific effects.

Capturing Light Trails using DSLR

Light trails are a beautiful visual effect that can add depth and interest to an image. To capture light trails, you'll need a camera with manual controls, such as a DSLR. One way to create light trails is by controlling the shutter speed of your camera. By adjusting the shutter speed, you can slow down or speed up the exposure, creating unique effects.

To capture light trails, start by mounting your camera on a tripod, as hand-holding will not produce the desired effect. Next, set your shutter speed to around 1-3 seconds, depending on the intensity of the light source and the desired effect. Experiment with different shutter speeds to achieve the look you want. With practice and patience, you can capture stunning light trails that add a touch of magic to your photographs.

Tips for Photographers: Using Aperture and Shutter Speed

For photographers who are new to aperture and shutter speed, here are some tips to get started:

* Experiment with different aperture settings to control the amount of light entering the lens.

* Understand how aperture affects depth of field, which can be used to create a sense of intimacy or expansiveness in an image.

* Practice using the camera's manual controls to capture images at different shutter speeds and aperture settings.

* Consider investing in a tripod, as this will allow you to stabilize the camera and achieve sharper images.

By mastering the basics of aperture and shutter speed, photographers can take control of their creative vision and produce high-quality images that showcase their artistic style.

"WEBVTTKind: captionsLanguage: enhi there this is ranit from tias.com and first I want to wish you a very happy New Year and I hope this 2013 brings you all the success and happiness and this will be the first Q&A session for 2013 and this is the 22nd Q&A session where I answer some of your Tech related questions and this time uh the Q&A is a little bit different I'm just going to talk about some of the generic questions that I get uh some of you might be annoyed because you think that these are simple questions but I do get them uh quite a bit so I'll be answering them and in the later part of the q a I'll be answering some photography related questions because uh about 2 weeks ago I had done a video about DLS uh dslrs versus point and shoot cameras and I did not expect that you guys have so much interest in photography and I've got a ton of questions so I'll be answering some of them uh in the later part of the Q&A so let's get on with the same and the first question comes from him chander and he asked me I want to install a Wi-Fi card on my desktop PC which one should I buy a USB based or a PCI card please answer me uh him Cher I have used both the USB based Wi-Fi cards and even the PCI slots the thing with you have to decide is portability definitely if you're using the USB based what do you say Wi-Fi cards they are much more portable and I would suggest that you go that route if you have multiple computers let's say you have a desktop computer uh multiple desktop computer something like that then the USB cards uh will be better but on the other hand what I have noticed is using a PCI card they generally come with a removable antenna so it if you have a very patchy reception in an area that you have your desktop Etc you can just put a higher gain antenna and thus get better uh reception I had good experience with both but and I have used Brands like belon and lynes and I have great experience again with USB based cards and even what do you say these just make sure the US that you're going to use they have compatible drivers because mostly uh the so I have one card that is lynis based PCI card that just simply does not work with Windows 7 computer it was designed for XP so just make sure that the software that you uh the card that you're buying is compatible with your operating system and I hope this answers your question uh next question comes from Samir Roy uh want to know that if we can uh can we convert MP3 files to WMV or any other uh video format that is full HD format if we do that can we improve the old video Clarity if it's possible then tell me which is the best free video converter again one thing I want to make sure yes you can definitely convert one video format to another for example MP4 to WMV or mov Etc but if you convert it from one format to another format uh the quality will simply not improve it's impossible uh the best case scenario is you can match the quality of the source to the Target but definitely let's say if your source is a crappy 480p video and if you upscale it and convert it to even say 1080p video the quality won't be great any uh video conversion software cannot improve the uh Source quality to the Target so just make that uh just keep that into mind uh you might be getting a 1080p file but if you look at it it will be the clarity will be the same as the source uh I have uh used a lot of video converting software for example you can use handbrake that's a free that works on Mac and even Windows uh that's a great one and you can also uh and I also use this vnx HD video converter on my Mac and that also works great but that's a p software I can ask the company to do a giveaway for us if you are interested uh do let me know in the comments I'll try to do a giveaway for wi uh X HD video converter software next question comes from Smart lad and uh he asked me iPad 4 being just a facelift of the previous generation iPad do you think it's the right time to buy this version or wait for the next version to come any idea about iPad file launch date and its advancements which color is preferable to buy white looks pretty good but does it get dirty easily or Fade Out I've heard in reviews that it shows micro cracks gradually is it true uh that it get cracks being a premium product again I want to make thing one thing very uh clear is I have used the iPad 3 and even iPad 4 but I haven't used it extensively so I can't comment about long-term usage and getting cracks but a very close friend of mine has the iPad 3 that's white in color now and and I think he's been using for four five months and and Frankly Speaking it does not get dirty and you can easily wipe it I did not notice any micro cracks or something like that but again this is iPad 3 I can't comment about iPad 4 talking about future releases of Apple only Apple knows when it's going to release the iPad 5 and what announcements uh it might have my gut feeling is that uh Apple is going to improve the iOS uh a lot more uh that's the main priority because as of now iOS 6 is a little bit stale again Hardware wise as of now I frankly do not know what the new iPad whatever the iPad 5 or whatever Apple likes to call will have announcement definitely it'll be faster but will it be radical I just don't know and the general thing that I want to talk about technology if if you keep on waiting for the new generation technology to come you just cannot buy any product because the pace of Technology changes so much and if you just keep on waiting you will never be a able to buy a product so just think if you like the iPad 4 or whatever just buy it and use it and enjoy it because I'm telling you iPad is a great investment I have the original iPad that's the iPad 1 and it still works perfectly fine I hope this info helps next question comes from bonald 100 uh ranji just in case anywhere here is interested I have watching this video now it's a pretty old uh notebook system 1.88 GHz code to Duo that I decided to convert using an inexp exive ocz Vortex plus uh 60gb SSD um and after doing that I can confidently report that uh though this upgrade was really cheap and took a bit of work it really uh gave New Life to my laptop uh thanks yes I have been talking about this a lot lately uh in my SSD reviews the best upgrade that you can do for your old computer or a laptop is just replace the mechanical hard drive with an SSD for example uh about a year ago or so I did this for my old desktop computer that was running a code to Duo and after that simple upgrade uh it break a new life into the system it was even faster than uh What uh it initially was so SST is one of the best upgrades you can do to your system and if you're using a desktop computer I would suggest that keep your old hard drive whatever it might be 500 GB 1 terb as a secondary hard drive and buy a cheap SSD like let's say a 60gb SSD or something like that and load your operating system and the most frequently used programs on that SSD and believe me it your system will be blazingly fast so I hope this helps uh next question comes from xnat River uh hi ranit my question can be awkward but here it goes I would like to know why smartphones are sold at higher prices than uh the countries they were produced in I understand the additional cost that comes from Shipping Etc profit whatever in my country the Galaxy Nexus sells for r 45,000 uh I think that this user is from macius and this excludes the government tax of 15% on all smartphone I'm quite puzzled as I thought the Galaxy Nexus were cheaper or am I mistaken thank you again um Na River this again this is a start State and I have talking about this earlier also yes there is a huge difference between gadgets from country to Country for example for Nexus devices they are a lot cheaper uh in countries where uh Google has their official play stores like in US UK and uh Australia and they are comparatively pretty high in other countries because Google does not control them for example let's you're talking about the Galaxy Nexus device and this uh device is being manufactured by Samsung so in countries where Google does not have their own Play Store Samsung designes the pricing and again it fluctuates from place to place and I would say that it depends upon the region for example let's say uh if a manufacturer feels that a has very low volumes let's say just uh they might sell about 5,000 units they might price it a lot higher because they have to support that device warranty Etc again the situation will be different for another country let's say they they can they anticipate that they can sell about half a million units so the pricing will be low but again I feel that this is wrong because this leads to people buying product from other countries for example as you are talking uh your Nexus is approximately 45,000 that's about uh and after tax it will come to over $900 that's pretty high in my opinion because the Galaxy Nexus in US sells for about just $350 and it's more than double so this is yeah it's the fact that this a startat state and I hope uh this just uh stops and yes manifacturers will have to have a little bit of Premium but insane premiums like this is just stupidity I hope this helps and the next question comes from viuff uh in my Micromax phone there is a feature called Wi-Fi hotspot what exactly it is uh VI this Wi-Fi hotspot functionality is present in almost every Android phone uh particularly every unlocked Android phone some of the locked phones might not have it but in India we only get unlocked phones so almost every phone has this and Wi-Fi hotspot is nothing but it uses your uh 2G connection or a 3g connection to provide internet via Wi-Fi it now by switching on this Wi-Fi hotspot your phone becomes a kind of like a Wi-Fi router and generally it can supports up to uh four to six devices it depends upon the phone to phone and this works pretty uh fine for example I do not carry another Wi-Fi uh device when I travel but I just use my uh Galaxy Nexus that's my Android phone and I use this Wi-Fi hotspot functionality to provide Wi-Fi connection to my other Wi-Fi enabled devices like tablets Etc when I'm traveling uh so I hope this uh helps but again just one thing that you need to remember when you're using this Wi-Fi hotspot functionality is that it drains your battery like crazy so uh use it cautiously I hope this helps uh the next question comes from Smart lad and he asked me hi Ranjit as Microsoft Surface has been one of the topnotch tablets in the market it confuses most of the people with its RT and the normal version can you please put up a video explaining the difference between it uh yes the Microsoft Surface is a tablet and yes we have it in two versions uh the Microsoft Surface RT and the Surface Pro the Surface Pro hasn't been launched yet and that's Surface Pro is very similar to your traditional laptops and it can run all the windows applications on the other hand the windows what you say surface with rt is uh like your other tablets and that's based on the arm architecture and the biggest difference is that it cannot run your old windows applications for example let's say you have this 2-year-old favorite Windows application. executable file you simply it won't run on your Windows RT tablet the only softwares that can run on the Windows Surface RT tablets is the software that you can download from the windows Marketplace I hope this info helps next question comes from Shas and he asked me please help me stream uh my content from my Windows 7 laptop to my Sony LED TV which is DNA enabled both laptops and uh the TV are on the same Wi-Fi network the problem I'm facing is neither can browse files on the laptop from the the T nor can I push them to the TV via laptop though why connected through uh the dongle internet can be used uh what should I do Shar the first thing I want to ask is what kind of dlns software are you using uh uh the free uh software that I suggest that you can install on your Windows 7 laptop is Twonky media that has a DNA server and that should solve the issue also if you already have an Android phone what I would suggest is that uh log on to the same Wi-Fi network using your Android phone and download this app called uh bubble UPnP and this is a free dlns software and and switch it on and just see that if now your Sony television which is DNA enabled can see uh your Android device and browse files from that if that's the case you need to look at the Windows 7 uh software that you the dln is particularly the software that you have installed on your laptop I hope it helps the next question comes from a and uh he asked me your Q&A sessions are helpful thank you please continue with them kindly let me know which is the best DSLR camera for a beginner who is interested in still photography and videography uh by the I can't suggest you what is the best because I generally do not review a lot of DSLR camera but I'm going to talk about my personal experience and as you're going to start fresh I would think that you are also on a tight budget and I would say that you can have a look at this Canon what do you say uh 1100d this is an entry-level DSLR from Canon and it's priced around $24,000 or so that's around $450 or so with the kit lens and this can take some great photograph for example my first DSLR was the Canon 1000d which is the previous model to this and I I took some great photographs with the same and this 1100d also has uh what do you say HD video footage but it's limited to what do you say 7 20p again uh I do not test a lot of Nikon products but Nikon also has a similar entry level DSLR uh I think so that's a D3100 so you can look at these again uh depending upon your needs you can go a higher Notch if you have a higher budget of around let's say $45,000 that's about $800 to $900 you can also look at the Canon 600D or the 650d I hope this info helps and the next question is what is ISO and aperture in a camera and I'm going to talk about DSLR now and first let me talk about ISO ISO in traditional terms is the sensitivity of the FL but now as these days we just use digital cameras like DSLR and P shoot it is the sensitivity of the sensor so if you raise the ISO from let's say uh what do you say 100 to let's say 400 the pictures will come out to be a lot more brighter because the sensor uh is now a lot more sensitive to the light but the con of this is if you continuously keep on raising the iso uh you will notice that you will see grainy pictures and uh generally uh dslrs can do a lot better job than point and shoot in the case of isos for example with lowend Point end shoots I've seen they do a good job up to ISO about 400 some of the highend what do you say 10 shoot cameras can even do uh can take great pictures up to isos up to 800 but uh if you want to further increase the iso I would say generally don't do that on a point and shoot camera but if you're having a DSLR you can further bump up the iso and then also you can get what you say clean pictures and I have seen that with dslrs you can go up to isos up to of up to 3200 and even up to 6,400 and then also can you can get great shot so that's ISO the sensitivity of this sensor next what is Aperture and to explain you that this is a lens of a camera for example this is the kit lens of a Canon DSLR that's a 18 to 55 mm lens that means it's a zoom lens and it can go from 18 mm to 55 mm and if you closely look at the lens uh it specifies the f f stop that's the aperture and that is at 18 mm that is uh 3.5 and when it's fully zoomed that is 55 mm for this lens it's 5.6 and this is the uh lowest F stop that this lens can do and uh to explain you that if you look at this lens water a lens does is it takes in lights and put it at the sensor but there is another thing uh between the what do you say here and the sensor and these are the blades and these blades close and open and based upon that for example if you keep the f- stop at 15 it it's going to the hole is going to be very small so only a limited amount of light is going to pass but if you increase it and that is exactly opposite that means you're lowering the stop for example if you go to let's say 3.5 and by doing that a lot more light will fall on the sensor and generally uh what do you say lenses that support uh low F stop for example uh some lenses you can go up to 1.2 F so with lenses that can go uh down a lot for example f stops up to 1.2 or 1.8 they can let in a lot more light and uh if you see photographs like this this is a boha effect this can be achieved easily with a lens that can support let's say low f stops like 1.8 2.2 Etc so aperture is the amount of you can control the amount of light that falls on your sensor and you can adjust the depth of field using that the best way to learn about aperture is Mount your camera on a what do you say a tripod and take the same picture in same fighting conditions with different aperture values for example take the first picture at let's say F value of 12 and take the next at about 5.6 or something like that and the next at the lowest that your uh what you say length support for example 1.8 something like that and see the difference how just changing the apure value changes the uh picture I hope uh this helps uh next question that I got from Prashant n is how take light rails using DSLR for example light Trail is something like this that you see in this Photograph the light streaks that you see uh and this can be done by just controlling the shutter speed of your camera for example in DSLR you can adjust the shutter speed a lot and to get light rails like this the first thing that you need to do is Mount your camera on a tripod don't try it with the hand hold because you won't get a good shot and you have to increase the shutter speed keep your shutter speed to about 1 to 3 seconds and then you can uh be able to get uh the shots like this I hope this help so these were some of the uh questions for this 202nd Q&A session I hope you found them useful uh if you would like that I answer some of your Tech related questions in the next Q&A session that I'll do in about 2 weeks time please post your question Below in the YouTube comments and started with the Q&A tag I'll try to include them in my next Q&A session that's it for now this is ranit from tech.com and I hope to see you in my next videohi there this is ranit from tias.com and first I want to wish you a very happy New Year and I hope this 2013 brings you all the success and happiness and this will be the first Q&A session for 2013 and this is the 22nd Q&A session where I answer some of your Tech related questions and this time uh the Q&A is a little bit different I'm just going to talk about some of the generic questions that I get uh some of you might be annoyed because you think that these are simple questions but I do get them uh quite a bit so I'll be answering them and in the later part of the q a I'll be answering some photography related questions because uh about 2 weeks ago I had done a video about DLS uh dslrs versus point and shoot cameras and I did not expect that you guys have so much interest in photography and I've got a ton of questions so I'll be answering some of them uh in the later part of the Q&A so let's get on with the same and the first question comes from him chander and he asked me I want to install a Wi-Fi card on my desktop PC which one should I buy a USB based or a PCI card please answer me uh him Cher I have used both the USB based Wi-Fi cards and even the PCI slots the thing with you have to decide is portability definitely if you're using the USB based what do you say Wi-Fi cards they are much more portable and I would suggest that you go that route if you have multiple computers let's say you have a desktop computer uh multiple desktop computer something like that then the USB cards uh will be better but on the other hand what I have noticed is using a PCI card they generally come with a removable antenna so it if you have a very patchy reception in an area that you have your desktop Etc you can just put a higher gain antenna and thus get better uh reception I had good experience with both but and I have used Brands like belon and lynes and I have great experience again with USB based cards and even what do you say these just make sure the US that you're going to use they have compatible drivers because mostly uh the so I have one card that is lynis based PCI card that just simply does not work with Windows 7 computer it was designed for XP so just make sure that the software that you uh the card that you're buying is compatible with your operating system and I hope this answers your question uh next question comes from Samir Roy uh want to know that if we can uh can we convert MP3 files to WMV or any other uh video format that is full HD format if we do that can we improve the old video Clarity if it's possible then tell me which is the best free video converter again one thing I want to make sure yes you can definitely convert one video format to another for example MP4 to WMV or mov Etc but if you convert it from one format to another format uh the quality will simply not improve it's impossible uh the best case scenario is you can match the quality of the source to the Target but definitely let's say if your source is a crappy 480p video and if you upscale it and convert it to even say 1080p video the quality won't be great any uh video conversion software cannot improve the uh Source quality to the Target so just make that uh just keep that into mind uh you might be getting a 1080p file but if you look at it it will be the clarity will be the same as the source uh I have uh used a lot of video converting software for example you can use handbrake that's a free that works on Mac and even Windows uh that's a great one and you can also uh and I also use this vnx HD video converter on my Mac and that also works great but that's a p software I can ask the company to do a giveaway for us if you are interested uh do let me know in the comments I'll try to do a giveaway for wi uh X HD video converter software next question comes from Smart lad and uh he asked me iPad 4 being just a facelift of the previous generation iPad do you think it's the right time to buy this version or wait for the next version to come any idea about iPad file launch date and its advancements which color is preferable to buy white looks pretty good but does it get dirty easily or Fade Out I've heard in reviews that it shows micro cracks gradually is it true uh that it get cracks being a premium product again I want to make thing one thing very uh clear is I have used the iPad 3 and even iPad 4 but I haven't used it extensively so I can't comment about long-term usage and getting cracks but a very close friend of mine has the iPad 3 that's white in color now and and I think he's been using for four five months and and Frankly Speaking it does not get dirty and you can easily wipe it I did not notice any micro cracks or something like that but again this is iPad 3 I can't comment about iPad 4 talking about future releases of Apple only Apple knows when it's going to release the iPad 5 and what announcements uh it might have my gut feeling is that uh Apple is going to improve the iOS uh a lot more uh that's the main priority because as of now iOS 6 is a little bit stale again Hardware wise as of now I frankly do not know what the new iPad whatever the iPad 5 or whatever Apple likes to call will have announcement definitely it'll be faster but will it be radical I just don't know and the general thing that I want to talk about technology if if you keep on waiting for the new generation technology to come you just cannot buy any product because the pace of Technology changes so much and if you just keep on waiting you will never be a able to buy a product so just think if you like the iPad 4 or whatever just buy it and use it and enjoy it because I'm telling you iPad is a great investment I have the original iPad that's the iPad 1 and it still works perfectly fine I hope this info helps next question comes from bonald 100 uh ranji just in case anywhere here is interested I have watching this video now it's a pretty old uh notebook system 1.88 GHz code to Duo that I decided to convert using an inexp exive ocz Vortex plus uh 60gb SSD um and after doing that I can confidently report that uh though this upgrade was really cheap and took a bit of work it really uh gave New Life to my laptop uh thanks yes I have been talking about this a lot lately uh in my SSD reviews the best upgrade that you can do for your old computer or a laptop is just replace the mechanical hard drive with an SSD for example uh about a year ago or so I did this for my old desktop computer that was running a code to Duo and after that simple upgrade uh it break a new life into the system it was even faster than uh What uh it initially was so SST is one of the best upgrades you can do to your system and if you're using a desktop computer I would suggest that keep your old hard drive whatever it might be 500 GB 1 terb as a secondary hard drive and buy a cheap SSD like let's say a 60gb SSD or something like that and load your operating system and the most frequently used programs on that SSD and believe me it your system will be blazingly fast so I hope this helps uh next question comes from xnat River uh hi ranit my question can be awkward but here it goes I would like to know why smartphones are sold at higher prices than uh the countries they were produced in I understand the additional cost that comes from Shipping Etc profit whatever in my country the Galaxy Nexus sells for r 45,000 uh I think that this user is from macius and this excludes the government tax of 15% on all smartphone I'm quite puzzled as I thought the Galaxy Nexus were cheaper or am I mistaken thank you again um Na River this again this is a start State and I have talking about this earlier also yes there is a huge difference between gadgets from country to Country for example for Nexus devices they are a lot cheaper uh in countries where uh Google has their official play stores like in US UK and uh Australia and they are comparatively pretty high in other countries because Google does not control them for example let's you're talking about the Galaxy Nexus device and this uh device is being manufactured by Samsung so in countries where Google does not have their own Play Store Samsung designes the pricing and again it fluctuates from place to place and I would say that it depends upon the region for example let's say uh if a manufacturer feels that a has very low volumes let's say just uh they might sell about 5,000 units they might price it a lot higher because they have to support that device warranty Etc again the situation will be different for another country let's say they they can they anticipate that they can sell about half a million units so the pricing will be low but again I feel that this is wrong because this leads to people buying product from other countries for example as you are talking uh your Nexus is approximately 45,000 that's about uh and after tax it will come to over $900 that's pretty high in my opinion because the Galaxy Nexus in US sells for about just $350 and it's more than double so this is yeah it's the fact that this a startat state and I hope uh this just uh stops and yes manifacturers will have to have a little bit of Premium but insane premiums like this is just stupidity I hope this helps and the next question comes from viuff uh in my Micromax phone there is a feature called Wi-Fi hotspot what exactly it is uh VI this Wi-Fi hotspot functionality is present in almost every Android phone uh particularly every unlocked Android phone some of the locked phones might not have it but in India we only get unlocked phones so almost every phone has this and Wi-Fi hotspot is nothing but it uses your uh 2G connection or a 3g connection to provide internet via Wi-Fi it now by switching on this Wi-Fi hotspot your phone becomes a kind of like a Wi-Fi router and generally it can supports up to uh four to six devices it depends upon the phone to phone and this works pretty uh fine for example I do not carry another Wi-Fi uh device when I travel but I just use my uh Galaxy Nexus that's my Android phone and I use this Wi-Fi hotspot functionality to provide Wi-Fi connection to my other Wi-Fi enabled devices like tablets Etc when I'm traveling uh so I hope this uh helps but again just one thing that you need to remember when you're using this Wi-Fi hotspot functionality is that it drains your battery like crazy so uh use it cautiously I hope this helps uh the next question comes from Smart lad and he asked me hi Ranjit as Microsoft Surface has been one of the topnotch tablets in the market it confuses most of the people with its RT and the normal version can you please put up a video explaining the difference between it uh yes the Microsoft Surface is a tablet and yes we have it in two versions uh the Microsoft Surface RT and the Surface Pro the Surface Pro hasn't been launched yet and that's Surface Pro is very similar to your traditional laptops and it can run all the windows applications on the other hand the windows what you say surface with rt is uh like your other tablets and that's based on the arm architecture and the biggest difference is that it cannot run your old windows applications for example let's say you have this 2-year-old favorite Windows application. executable file you simply it won't run on your Windows RT tablet the only softwares that can run on the Windows Surface RT tablets is the software that you can download from the windows Marketplace I hope this info helps next question comes from Shas and he asked me please help me stream uh my content from my Windows 7 laptop to my Sony LED TV which is DNA enabled both laptops and uh the TV are on the same Wi-Fi network the problem I'm facing is neither can browse files on the laptop from the the T nor can I push them to the TV via laptop though why connected through uh the dongle internet can be used uh what should I do Shar the first thing I want to ask is what kind of dlns software are you using uh uh the free uh software that I suggest that you can install on your Windows 7 laptop is Twonky media that has a DNA server and that should solve the issue also if you already have an Android phone what I would suggest is that uh log on to the same Wi-Fi network using your Android phone and download this app called uh bubble UPnP and this is a free dlns software and and switch it on and just see that if now your Sony television which is DNA enabled can see uh your Android device and browse files from that if that's the case you need to look at the Windows 7 uh software that you the dln is particularly the software that you have installed on your laptop I hope it helps the next question comes from a and uh he asked me your Q&A sessions are helpful thank you please continue with them kindly let me know which is the best DSLR camera for a beginner who is interested in still photography and videography uh by the I can't suggest you what is the best because I generally do not review a lot of DSLR camera but I'm going to talk about my personal experience and as you're going to start fresh I would think that you are also on a tight budget and I would say that you can have a look at this Canon what do you say uh 1100d this is an entry-level DSLR from Canon and it's priced around $24,000 or so that's around $450 or so with the kit lens and this can take some great photograph for example my first DSLR was the Canon 1000d which is the previous model to this and I I took some great photographs with the same and this 1100d also has uh what do you say HD video footage but it's limited to what do you say 7 20p again uh I do not test a lot of Nikon products but Nikon also has a similar entry level DSLR uh I think so that's a D3100 so you can look at these again uh depending upon your needs you can go a higher Notch if you have a higher budget of around let's say $45,000 that's about $800 to $900 you can also look at the Canon 600D or the 650d I hope this info helps and the next question is what is ISO and aperture in a camera and I'm going to talk about DSLR now and first let me talk about ISO ISO in traditional terms is the sensitivity of the FL but now as these days we just use digital cameras like DSLR and P shoot it is the sensitivity of the sensor so if you raise the ISO from let's say uh what do you say 100 to let's say 400 the pictures will come out to be a lot more brighter because the sensor uh is now a lot more sensitive to the light but the con of this is if you continuously keep on raising the iso uh you will notice that you will see grainy pictures and uh generally uh dslrs can do a lot better job than point and shoot in the case of isos for example with lowend Point end shoots I've seen they do a good job up to ISO about 400 some of the highend what do you say 10 shoot cameras can even do uh can take great pictures up to isos up to 800 but uh if you want to further increase the iso I would say generally don't do that on a point and shoot camera but if you're having a DSLR you can further bump up the iso and then also you can get what you say clean pictures and I have seen that with dslrs you can go up to isos up to of up to 3200 and even up to 6,400 and then also can you can get great shot so that's ISO the sensitivity of this sensor next what is Aperture and to explain you that this is a lens of a camera for example this is the kit lens of a Canon DSLR that's a 18 to 55 mm lens that means it's a zoom lens and it can go from 18 mm to 55 mm and if you closely look at the lens uh it specifies the f f stop that's the aperture and that is at 18 mm that is uh 3.5 and when it's fully zoomed that is 55 mm for this lens it's 5.6 and this is the uh lowest F stop that this lens can do and uh to explain you that if you look at this lens water a lens does is it takes in lights and put it at the sensor but there is another thing uh between the what do you say here and the sensor and these are the blades and these blades close and open and based upon that for example if you keep the f- stop at 15 it it's going to the hole is going to be very small so only a limited amount of light is going to pass but if you increase it and that is exactly opposite that means you're lowering the stop for example if you go to let's say 3.5 and by doing that a lot more light will fall on the sensor and generally uh what do you say lenses that support uh low F stop for example uh some lenses you can go up to 1.2 F so with lenses that can go uh down a lot for example f stops up to 1.2 or 1.8 they can let in a lot more light and uh if you see photographs like this this is a boha effect this can be achieved easily with a lens that can support let's say low f stops like 1.8 2.2 Etc so aperture is the amount of you can control the amount of light that falls on your sensor and you can adjust the depth of field using that the best way to learn about aperture is Mount your camera on a what do you say a tripod and take the same picture in same fighting conditions with different aperture values for example take the first picture at let's say F value of 12 and take the next at about 5.6 or something like that and the next at the lowest that your uh what you say length support for example 1.8 something like that and see the difference how just changing the apure value changes the uh picture I hope uh this helps uh next question that I got from Prashant n is how take light rails using DSLR for example light Trail is something like this that you see in this Photograph the light streaks that you see uh and this can be done by just controlling the shutter speed of your camera for example in DSLR you can adjust the shutter speed a lot and to get light rails like this the first thing that you need to do is Mount your camera on a tripod don't try it with the hand hold because you won't get a good shot and you have to increase the shutter speed keep your shutter speed to about 1 to 3 seconds and then you can uh be able to get uh the shots like this I hope this help so these were some of the uh questions for this 202nd Q&A session I hope you found them useful uh if you would like that I answer some of your Tech related questions in the next Q&A session that I'll do in about 2 weeks time please post your question Below in the YouTube comments and started with the Q&A tag I'll try to include them in my next Q&A session that's it for now this is ranit from tech.com and I hope to see you in my next video\n"