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Nikon 8-80mm f1.4 c lens???
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PostPosted: Fri Nov 11, 2011 6:06 pm    Post subject: Nikon 8-80mm f1.4 c lens??? Reply with quote
Very interesting looking lens! Any idea?

Click here to see on Ebay


PostPosted: Sat Nov 12, 2011 1:17 pm    Post subject: Reply with quote
Hard to say, most of them do severely vignette.


PostPosted: Sun Nov 13, 2011 11:02 am    Post subject: Reply with quote
kds315* wrote:
Hard to say, most of them do severely vignette.


Thanks Klaus. The lens will vignette even at 80mm? Assuming this is a 1'' lens.


PostPosted: Sun Nov 13, 2011 11:27 am    Post subject: Reply with quote
A 1" sensor has a diagonal image size of 16mm (and NOT 25.4mm!!). A Lumix has about 23mm sensor diagonal - see the difference?
http://www.dpreview.com/learn/?/Glossary/Camera_System/sensor_sizes_01.htm
So of course there woudl be vignetting, but since at longer focal lengths, the image size increases, longer focal lengths (usually from about 30-50mm onwards) have enough coverage to fill the sensor w/o vignetting. But that does not mean a sharp image in the corners and area outside teh 16mm image circle, as usually this area outside the 16mm image circle is not well defined by the lens design; it is just a by-product more or less coincidential.
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