GMCPhotographics said:Random Orbits said:I have the Zeiss 21mm too and I quite like it, especially for astrophotography (not much coma and hard stop at infinity). Now even "modern" Canon lenses exhibit coma like: 24mm 1.4L II 35mm 1.4L 16-35mm f/2.8L
I guessing that Canon's coma performance will be improved during the next round of release. The 24-70 II is much better coma-wise.
Is Coma performance particularly important for landscapes? Wide open, how about at f11?
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Only for astrophotography. You don't want to stop down to f/11 as your photo will change from a 15-30 second photo at 2.8 to a 4-8 minute photo, and those bugger stars just don't hold still. I just got the Zeiss 21mm last week and took it with me to Moab to break it in. For an astrophotography landscape lens, I must say it is spectacular:
Moonlit Bridge by yorgasor, on Flickr
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