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RAW and sensor?

Doesn't that just lower the megapixel count? Or does it actually magnify the image?
 
You can on D3's. You have these choices:

FX-format
(L) 4256 x 2832
(M) 3184 x 2120
(S) 2128 x 1416
1:2 format (30 x 20)
(L) 3,552 x 2,368
(M) 2,656 x 1,776
(S) 1,776 x 1,184
5:4 format (30 x 24)
(L) 3552 x 2832
(M) 2656 x 2120
(S) 1776 x 1416
DX-format
(L) 2784 x 1848
(M) 2080 x 1384
(S) 1392 x 920

Exactly what I was thinking of.
 
A RAW file made by a 10 MP camera will result in a file that is approximately 30 MB in size. When that file is converted to a JPEG it is usually reduced in size by a 4:1 ratio (to about 7 MB)

Is this true? My D60 produces RAWs that are about 8-10mb. How does this work?

The main reason that Raw files are smaller than you might at first imagine is that they contain no colour information - there is only one channel of data per pixel. The colour information, and hence the three channels of red, green and blue, is computed in the Raw processing software.

Best,
Helen
 
The 7D is a Canon, but if my memory serves me correctly, it's only a 1.3x crop?

I'm pretty sure it's Canon's APS-C size sensor... a 1.6x crop like the others. Nikon's DX is a 1.5x crop.

FF cams are better than crop because they provide a lot more FoV in your pics, while at the same time being able to flip the switch and let their sensor run at 1.6 crop.

FF can do crop, crop can't do FF.

While this is true, the full-frame camera produces a much smaller photograph when in crop-mode than a comparable crop camera. For example, many of the full-frame Nikons will produce a photograph of only 6MP (or something around there) when in crop mode, whereas a dedicated DX camera will produce a 12MP photograph.

Not that megapixels are super-important (that thread has run its course), but it is a consideration in a day in age where many magazines and many stock agencies demand that submissions be no less than 6MP.
 

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