John Hennessy
3-Nov-2003, 22:07
The image circle on a Nikkor M 200mm I just got is listed as 210mm @ f/22 on all sources I know. That was a reason I hesitated buying the lens. But the lens actually has an image circle much bigger; I think it is about 300mm. Due, I suppose, to image degradation at the outer edge, lens manufacturers seem to be a little modest about published image circle sizes. For instance, the other two Nikkor M lenses I have exceed the published image circle by about 10-15 percent. But the M 200 exceeds by about 50%.
Has anyone else noticed this? Has anyone found the extra image circle to be useable? I am still subjectively testing but are there any known objective tests? None of the info I have on the 210mm image circle is from Nikon itself so maybe the number is just wrong.
Even with a 210mm image circle, it seems to be a great lens. And mounted on a technica board it fits in my pocket.
Has anyone else noticed this? Has anyone found the extra image circle to be useable? I am still subjectively testing but are there any known objective tests? None of the info I have on the 210mm image circle is from Nikon itself so maybe the number is just wrong.
Even with a 210mm image circle, it seems to be a great lens. And mounted on a technica board it fits in my pocket.