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Site Information / Re: Minimum CR Forum IQ?
« on: April 11, 2013, 07:56:58 PM »Only if you have a full frame! Some of us have a more slender boy typeWhy 'stop' @2.8. That's not fair '2' those more 'open-minded' or those who have had 1.2 many cocktails.Careful with those, corner sharpness will deteriorate, and you can expect increased vignetting