70-400G or 500mm -is the 100mm difference great? simple test

Started Jan 9, 2011 | Discussions thread
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PC Wheeler
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Re: Cropping a 400mm image to the same FOV as a 500mm image
In reply to Robsphoto, Jan 12, 2011

Robsphoto wrote:

One way of looking at this problem is to consider whether you would be happy with the results if you cropped an image taken with a 400mm lens to the same field of view (FOV) as you would get if the image had been captured with a 500mm lens.

I have written some notes about the advantages and disadvantages of cropping images to gain extra reach:


Here's an article on zoom vs. sensor resolution from the dusty past -- 11 years ago:


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Canon 7D: Canon 15-85 IS, 70-300L IS, Others
Sony A55: Tamron 10-24, Sigma 18-250OS, Sony 70-400G, Sony 50mm Macro, Others

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