Sharpness of Images
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I have this lens (i.e. the Nikkor 70-300 FX zoom lens), a Nikon D600 and a Nikon D 7000. Recently I have been trying to take pictures of the moon. You rate this lens higher with the D 600 than with the D 7000, but I have been able to take much more detailed pictures of the moon and its many craters, with the D 7000 at full zoom than with the D 600. In fact the difference is stunning.
So please try to help me understand why my images are more detailed with the D 7000 than with the D 600.
I think the reason is this: At full zoom, the fx lens zooms to the equivalent of 450 mm on the dx camera. I think this comes about because although there are more pixels on the FX camera, the pixels on the DX camera are crowded into half the amount of space, so the actual density of the dx image is greater, so that the image of the moon includes more pixels from the dx camera, than from the fx.
The moon is actually pretty bright so there is enough light to fully utilize the dx pixels.
Thank you for your wonderful site.
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