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08-23-2009, 07:20 PM   #16
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QuoteOriginally posted by Cosmo Quote
How isn't it a circular image?
Not all fisheyes are circular. This one with the hood cut off is circular on a full frame camera. There are many samples of the output.

08-25-2009, 12:33 PM   #17
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QuoteOriginally posted by WheresWaldo Quote
Not all fisheyes are circular. This one with the hood cut off is circular on a full frame camera. There are many samples of the output.
4.5mm F2.8 EX DC Circular Fisheye HSM:

Sigma - Lenses

First bike riding test with Pentax K-7 and 6.5mm F3.5 Opteka Fisheye lens in 1536x1024 *** mode with SR on.

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