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Ultra-Wide for Canon 550D - Printable Version +- Opticallimits (https://forum.opticallimits.com) +-- Forum: Forums (https://forum.opticallimits.com/forumdisplay.php?fid=4) +--- Forum: Just Talk (https://forum.opticallimits.com/forumdisplay.php?fid=17) +--- Thread: Ultra-Wide for Canon 550D (/showthread.php?tid=3409) Pages:
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Ultra-Wide for Canon 550D - marius - 02-10-2011 [quote name='Yakim' timestamp='1297322054' post='6019'] Why? CA can easily be removed in PP. This is a personal question only you can answer. AFAIAC the answer is: Absolutely. BTW, it's APS (or APS-C) sensor, not APC. [/quote] Yes, my bad, sorry APS-C i was in a rush .... Ultra-Wide for Canon 550D - Herbie - 02-24-2011 I have the Tokina 11-16mm, and it's certainly a nice lens. However, based on the great reviews this lens did get in various places, I had hoped that the image quality with wide apertures would be better. I do some night sky photography, and stars look quite bad in the corners at f/2.8 due to the severe coma. The quality improves at f/4.0 and is already very good at f/5.6. Obviously, night sky photography is quite demanding - stars, as perfect point sources, show up any imperfection a lens may have. For daytime landscape photography (where you usually stop down) or when you use a wide aperture to isolate the subject (and the corners are blurred anyway), the coma does not matter at all. I like this lens, and use it a lot. Well, at least until some UWA with less coma becomes available... <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/wink.gif' class='bbc_emoticon' alt=' ![]() Cheers, Herbert |