Is the 17/1.8 snap-focus ring a gimmick?

Started Jan 31, 2013 | Discussions thread
mh2000
Senior MemberPosts: 2,678
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Re: Is the 17/1.8 snap-focus ring a gimmick?
In reply to Jun2, Jan 31, 2013

Jun2 wrote:

Yes, it's a Gimmick. My 12mm f2 markings are sometime accurate, sometime not. The thing is the whole thing is not mechanical, that is still electronic wire focus. I don't really know what the markings are based on. I don't have 17mm, I would expect to be similar.

You're not supposed to guess focus for f2!!!!!

You guess focus at f5.6 or smaller!

Personally, I'm considering getting the 17/1.8 specifically for the scale focusing! I shoot a lot of ultra low light interior shots and manually focusing the 17/2.8 can be a real pain, so just snapping to f7.1 and setting focus to 5 ft or 3m would be perfect!

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