I dare say it would be pretty bad Eris, I get a fair bit of vignetting on a DSLR sized sensor with the C11 @ F/6.3, the ST2000 (from memory) is the same height as the DSLR sensor, but not as wide, because its a square sensor... I think its a sure bet that the ST2K will vignette pretty seriously at 3.3..
Alex.
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