I'm not familiar with Olympus cameras or lenses. What's the crop factor on these, about 2x?
Also, interesting lens; according to Amazon it's $400. Why can't we get something similar for an EF mount? I mean, this is about a 4x zoom and, I would assume, roughly equivalent in range to a 17-70 on a 1.6x. Sigma makes a 17-70 for EF, and it goes for about $400, but it's f/2.8-4.5, not f/2.8-3.5.
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I'm not familiar with Olympus cameras or lenses. What's the crop factor on these, about 2x?
Also, interesting lens; according to Amazon it's $400. Why can't we get something similar for an EF mount? I mean, this is about a 4x zoom and, I would assume, roughly equivalent in range to a 17-70 on a 1.6x. Sigma makes a 17-70 for EF, and it goes for about $400, but it's f/2.8-4.5, not f/2.8-3.5.