 The Megapixel Myth |
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 Dec 15 2007, 11:26 AM
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#1
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Newbie [Level 1]  Group: Members Posts: 23 Joined: 14-December 07 From: India Member No.: 54,749  |
QUOTE <quote>So how many times have we all gone out to buy a digi cam based on the mega pixel criteria?? </quote>Then why does a 7.2 MP camera from Tech Com costs Rs7000 while from Sony the same thing costs above 15K. So now its time to look deeper into what actually determines the photo quality of your digital camera.It's a sensor which is of two types 1-CCD sensor 2-CMOS sensor Mega pixels only determine how much will you be able to scale your images. Now coming to the sensors. CCD sensors are expensive but the photo quality over CMOS is passable. CMOS sensors are cheaper,require less battery power but actually the photo quality b/w CMOS and CCD sensors is just not comparable.All mobiles come up with only CMOS sensor cameras SO now u probably know why a 5 MP camera from SONY costs more. :-) Source-www.tecktalk.blogspot.com |
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Dec 16 2007, 07:07 AM
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#2
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Privileged Member Group: [HOSTED] Posts: 537 Joined: 21-August 06 From: Ziya's Heart Member No.: 28,693 |
CCD (Charge Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor) both sensors are used to convert light into voltages. But there is a basic difference between the two.
In CMOS a circuit is incorporated in the pixels itself to change the image to digital form, thus the surface of the pixel is not fully utilized to capture image, compromising with the image quality but size is small and thats why used in mobiles. In CCD the whole surface is used to capture image and the analog output of these pixels are then changed into digital form by an extra circuitry. Thus resulting in bulkier size but with superb image quality. |
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Dec 16 2007, 09:45 AM
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#3
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Super Member Group: [HOSTED] Posts: 496 Joined: 15-March 05 Member No.: 4,538 |
That is very interesting to know, because I always kind of new that those cameras on mobile phones just cannotbe as good as normal ones, but I didn't know exactly why.
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Dec 16 2007, 10:58 AM
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#4
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Trap Grand Marshal Member Group: [HOSTED] Posts: 1,134 Joined: 19-May 05 From: Mexico Member No.: 7,234 |
I always thought that the more megapixels and the name of the brand the better, but I wouldnt buy a camera anyways, I dont take much pictures. I am doing alright with the camera that came in my phone, I might upgrade to a cybershot cellphone in a couple of months. That way I can have an mp3 player, a camera and a phone all in one. Because I would really hate to carry a camera and an ipod and a phone... to much space!
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Dec 17 2007, 09:24 AM
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#5
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Newbie [Level 1] Group: Members Posts: 23 Joined: 14-December 07 From: India Member No.: 54,749 |
U see if u want A4 size print a 3 MEGA PIXEL camera would do u a world of good.with CCD sensor though...
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Dec 17 2007, 11:17 PM
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#6
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Privileged Member Group: [HOSTED] Posts: 775 Joined: 13-April 07 From: mreža Member No.: 41,558 |
Yes but it also influences that is influenced by some other criterias such as. Whether or not you have some software or ebtter to say firmware that will control stillness of picture and so on. Because on high resolutions some pictures might not look smooth and it will be distracted
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Jan 8 2008, 04:05 AM
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#7
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Newbie Group: Members Posts: 4 Joined: 8-January 08 Member No.: 55,913 |
I think megapixels are just for the size of the image, I'm happier with a cheaper samsung 5mp camera than with a sony 7.2 mp but expensive
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Jan 15 2008, 01:50 PM
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#8
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Newbie Group: Members Posts: 3 Joined: 15-January 08 Member No.: 56,290 |
I always wondered about this. Thank You for confirming my suspicions. Although I am no camera expert I know that
the camera lense also affects the quality of the picture. Therefore the image can only be as good as the Lense. So using a basic lensed camera at 8MP is useless. While using perhaps a Schneider lense at 8MP will take a much better photo. Alex |
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Jan 19 2008, 06:07 PM
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#9
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Newbie [Level 1] Group: Members Posts: 10 Joined: 19-January 08 Member No.: 56,504 |
I have Sony W850 with 2MP and... this is fantastic! Super quality! As professional photo-camera....
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