Focus and 5D MK III

Started Jan 30, 2013 | Discussions thread
ForumParentFirstPreviousNextNext unread
Flat view
plautoq
Regular MemberPosts: 118Gear list
Like?
Focus and 5D MK III
Jan 30, 2013

Dear DPExperts...

I was shooting indoors (gymnastics) and I notice that a few pictures were out of focus (in fact - focus was on some of the background subjects rather than the main subject). I looked where my focus points were using DPP, and the focus point (1 point to the right from the center point - within the selected zone) was on the background subject. I was using AF Mode AI Servo, AF config Case 1 and Zone AF, zone auto swicthing set to 0. The main difference is the outfit of the subjects : the main subject is wearing a 'mostly' red with a few white and blue stripes outfit, and the background subject is wearing a white/black outfit combination. I believe the white/black outfit had a higher contrast, therefore the camera 'chose' to pick that as the main subject within the zone selected. Any creative solutions to work around that ? I'm planning to shoot next time using center point only to assure I have the main subject in focus, but it defeats the purpose of having zone AF for accuracy (the subjects are moving at a high speed and sometimes is hard to track them perfectly with center focus only).

I always thought that the focus point had priority in that situation, but the priority is always best contrast within the zone. Does it make sense ?

Sorry for the long note, but thanks in advance for any suggestions.

Cheers.

 plautoq's gear list:plautoq's gear list
Canon EOS 60D Canon EF-S 15-85mm f/3.5-5.6 IS USM Canon EF 24-70mm f/2.8L USM Canon EF 70-200mm f/2.8L USM Adobe Photoshop Lightroom 4
Canon EOS 5D
If you believe there are incorrect tags, please send us this post using our feedback form.
ForumParentFirstPreviousNextNext unread
Flat view
Post (hide subjects)Posted by
ForumParentFirstPreviousNextNext unread
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow