At what size of print out of D700 will show the same quality as that of D600.

Started 4 months ago | Discussions thread
foto2021
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Re: At what size of print out of D700 will show the same quality as that of D600.
In reply to ebuddha, 4 months ago

ebuddha wrote:

for desktop viewing, printed at 286 ppi

the d700 can print 14.8 x 9.9

the d600 can print 21 x 14

for print to be hung on the wall and printed at 143 ppi

the d700 can print 29.7 x 19.8

the d600 can print 42 x 28

that should help guide you as to which camera fits your needs.

There appear to be some gross assumptions implicit in the above figures. The principal assumption would seem to be that the greater number of pixels of the D600 sensor versus the D700 sensor is fully reflected in the quality of the output.

If only life were so simple.

You can improve the image quality of any DSLR by using a higher quality lens (a lens with greater resolution). That's without changing the pixel count at all.

On the other hand, using the same lens on a DSLR whose a sensor has a higher pixel count will improve image quality, but not to the degree suggested by the ratio of the greater pixel count to the lesser. For example, using the same lens on a D600 as you used on the D700 could mean that the improvement in image quality was substantially less than would be suggested by the doubling in pixel count.

To obtain the full benefit of the doubling in pixel count, the linear (lp/mm) resolution of the lens used on the D600 would need to be approximately 1.42 times better than the lens that was used on the D700. Even that is a gross assumption ... but it is a rather more reliable assumption than one based solely on counting pixels without taking anything else into account.

Perhaps another way of looking at this issue would be to ask why so many professional shooters can deliver better image quality from a 16 MP Nikon D4 than their amateur counterparts with a 36 MP Nikon D800. The answer is, it's more complicated than you think.

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Colin

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