What is Back Button Focus all about?

Started 8 months ago | Discussions thread
Phhoenyxx
Senior MemberPosts: 2,324Gear list
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Re: What is Back Button Focus all about?
In reply to WilbaW, 7 months ago

enemjii wrote:

I read through the postings and I figured it is a Focus lock button. Did I get that right?

No, it's an autofocus triggering button. If you want it to lock focus you set the camera to AI Servo and lift off  when you want to lock focus, and back on again when you want autofocus to go again. Try it!

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Check out the unofficial Rebel Talk FAQ.

Does it need to be on AI Servo? I thought that as soon as you let go, it is essentially locked because it doesn't refocus, so you can take as many shots as you like without pressing it again.
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