« on: December 20, 2013, 11:11:25 AM »
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Going to have to pull the trigger on the 24-70L II at BH for that deal. Must first get some idea if I can get $1k for my Zeiss 21 and $300 for a Sigma 50 to help pay for it.
You can absolutely get $1k for your Zeiss 21, I was thrilled to pay $1400 for a used one, that was by far the cheapest I'd seen it used. Granted that could just be because they haven't been around that long, but seriously don't sell it for $1k, waaayyy too cheap.
This isn't done yet, but I recently rented the Canon 14, 24, 16-35 and 17-40 along with my Samyang 14 and 24 and Zeiss 21 to test exactly this stuff. http://www.extremeinstability.com/lenses.html Guessing you can get the idea from that right now. The Samyang 14 and 24 can both be used wide open on stars no problem. Canon's are a joke on stars. And otherwise still aren't worth the money. Unless one doesn't care for corners I guess.extremeinstability, when I said Lenstip was about the only place I had seen coma tests, your site was the other site, but I didn't have your URL. Thanks for posting and keep up the great tests!