Sigma 35mm f/1.4 user feedback needed

Started Jun 10, 2013 | Discussions thread
Peter too
Contributing MemberPosts: 790
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Focussing at F1.4 advice please
In reply to M J Valentine, Jul 7, 2013

I recently bought this lens and am trying to learn how to use it on a 7D. I would welcome advice from those familiar with using lenses at F1.4 as this is a new challenge to me. I sometimes get images that are pin sharp at the focus point and sometimes not. I suspect one issue is that I tend to use single point expanded focussing and I don't think that will work with such a shallow depth of focus as anything  fractionally closer than the focus point will throw it out of focus.

Do you normally use single point or spot focussing at F1.4?

When operating at F1.4 do you use autofocus, live view focus or manual focus?

Are there any other settings you use specifically for F1.4 photography.

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