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With the V1 you get 10Mp. Cropping the D800's 36Mp by 2.7x will give about 5Mp. The D7000 would be about the same, but the D300 gives only about 3.7Mp. Another alternative (cheaper than the V1 + FT1) might be to wait for the rumoured 24Mp D3200, which should be a bit less frustrating for birding, and will give 7.4Mp on the same image. Assuming your 300mm is AF-S of course.
How do I do this? Divide an FX camera's resolution by the square of the crop factor of the V1, 2.7x2.7 = 7.29.
Divide a DX camera's resolution by the square of the V1's crop factor, and multiply by the square of the DX Crop factor, means you effectively divide by 3.24.
This gives the number of pixels for the same lens compared to the V1's 10Mpixels.
Chris
Last edited by greenwing; 06-04-12 at 03:03 PM.
Reason: AF-S needed for D3200 (presumably)
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