Apart from greater detail, larger resolution CCDs produce bigger image, but don't get confused by the magnification on frame and viewfinder which depends on lens - not CCD.
For illustration I shot the moon at 8MP and 2MP settings respectively using the same camera. The native resolutions were maintained [i.e no size reduction] but cropped 100% to 500 x 282pixel.
Q. What is 100% crop?
100% crop means that your are seeing the image 1:1, i.e you're seeing it at the pixel level, each pixel on your screen is a pixel of the image captured on the CCD. I've blown it up to 100% then cropped it - since the WHOLE image of 8MP or even 2MP would be HUGE to display on this screen without cropping or trimming.
Here are the results for comparison:
8MP [3264 x 2448pixel] cropped 100%
For illustration I shot the moon at 8MP and 2MP settings respectively using the same camera. The native resolutions were maintained [i.e no size reduction] but cropped 100% to 500 x 282pixel.
Q. What is 100% crop?
100% crop means that your are seeing the image 1:1, i.e you're seeing it at the pixel level, each pixel on your screen is a pixel of the image captured on the CCD. I've blown it up to 100% then cropped it - since the WHOLE image of 8MP or even 2MP would be HUGE to display on this screen without cropping or trimming.
Here are the results for comparison:
8MP [3264 x 2448pixel] cropped 100%
2MP [1600x1200pixel] cropped 100%
EXIF
Original date/time: 2010:02:04 06:07:20
Exposure time: 1/180
F-stop: 11
ISO speed: 200
Focal length: Tokina RMC 200mm f3.5 s/n 7701252
Flash: -
Exposure mode: Manual
White balance: Auto
Orientation: Top-left
Light source: Unknown
Exposure bias: 0.0000
Metering mode: Pattern
Exposure program: Manual
Digitized date/time: 2010:02:04 06:07:20
Modified date/time: 2010:02:04 06:07:20
Image description: OLYMPUS DIGITAL CAMERA
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