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11/11/2002 05:30:37 PM · #1 |
Is it possible to tell the difference between a 2 MP camera to a 3-5 MP camera when look at the photos on a computer screen?
If you can, maybe this site should have something like the best of or top three of 2,3,4,5 MP cameras? |
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11/11/2002 05:44:52 PM · #2 |
There are certainly differences that can be seen between cameras with different resolutions even when they are reduced for a computer display but that is to be expected. There are numerous differences in quality between 35mm films as well but it would be ridiculous to have different categories for each type of film. It is common to begin with lower quality gear when you are starting out in a new endeavor like photography. As your skills develop you will understand the differences in eqipment and you will be able to choose more wisely. Most people, like me, participate in these challenges and competitions to develop our skills which includes learning about what equipment works best for our needs.
T
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11/11/2002 06:04:00 PM · #3 |
not directly...the maximum resolution that we can display here is 640 pixels by 480 pixels. a 1 megapixel camera has more than enough resolution to cover this.
the advantages to a larger megapixel camera is mainly in the hardcopy printing. where pixel density is fixed on a computer, it's not limited with a print in the same way. with a print you can vary the pixel density - the print size may be constant but the # of source pixels varies based on the image from the camera. the higher the resolution of the initial image, the more pixels per square inch you get. more pixels per inch makes a sharper image.
a higher-resolution camera can take a photo from further away and still come out with a sharp image after cropping, so this is an advantage. cameras with more magapixels also tend to be better quality overall, though there are exceptions.
i chose my camera based on this - i bought a 2.1 megapixel camera with a fairly good lens and lots of manual features. i wasn't planning on printing a lot of hardcopy images, so any increased resolution was overkill and any shortcomings could be overcome with planning my shots carefully and not drastically cropping afterwards.
hope that helps.
james. |
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11/11/2002 06:17:26 PM · #4 |
| The other major advantage with higer resolutions is the ability to crop out a tiny piece of the original frame without having to re-sample the image to meet the 640 pixel limit. |
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11/11/2002 06:31:29 PM · #5 |
Originally posted by jimmythefish:
not directly...the maximum resolution that we can display here is 640 pixels by 480 pixels. a 1 megapixel camera has more than enough resolution to cover this.
It's much more than that. A 1 megapixel CCD camera has much less color information than a 4 megapixel CCD camera. Remember, each pixel on a CMOS/CCD sensor contains only ONE color. So if you resize the photo down to 640x480, you'll get a better result than a 1 megapixel camera.
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11/11/2002 06:54:17 PM · #6 |
Its not really much to do with the Mp of the camera, but the quality of the lenses.
You can certainly see the differences in quality of a good, digital SLR camera, in the hands of someone who knows what they are doing and the output of a 2,3 or 4Mp compact/ prosumer digicam for a lot of pictures,
even when sampled down to 640x480. Sensor data size is only one part of a
camera system.
E.g., this picture has expensive camera system all over it.
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11/11/2002 07:01:31 PM · #7 |
yes bit-depth is an issue, but i think the average 1 megapixel camera can still take images at 24-bit depth, which is pretty good as far as tonal range goes. to see what i mean, turn your monitor's settings to 16-bit depth and see if you can detect any loss in image quality. you'd be hard pressed in most cases.
james. |
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