topic Back button focus in EOS DSLR & Mirrorless Cameras

Back button focus

kennlw5 — Wed, 14 Nov 2012 02:28:46 GMT

Re: Back button focus

WaltA — Wed, 14 Nov 2012 02:47:12 GMT

I know

Re: Back button focus

jfo — Wed, 14 Nov 2012 09:46:20 GMT

Yup......

(What was the question again? )

Re: Back button focus

David — Wed, 14 Nov 2012 10:47:08 GMT

Always.

Re: Back button focus

Local_Hero — Wed, 14 Nov 2012 13:20:53 GMT

When using back button focusing when does the IS engage? Is it when you are pressing the focus button or when you press the shutter?

Just wondering because sometimes I lock in my focus with the back button then wait a couple seconds to hit the shutter button (depends on the scene I'm working with). This has just been something I was wondering. I'd test it out but I don't currently have a lens with IS.

Re: Back button focus

jfo — Wed, 14 Nov 2012 16:47:01 GMT

@Local_Hero wrote:
When using back button focusing when does the IS engage? Is it when you are pressing the focus button or when you press the shutter?

Just wondering because sometimes I lock in my focus with the back button then wait a couple seconds to hit the shutter button (depends on the scene I'm working with). This has just been something I was wondering. I'd test it out but I don't currently have a lens with IS.

Not sure if it varies by camera/body, but for the 5DM3 and 7D, IS starts for both when you press the focus button and the shutter. It stays on for a few seconds after you let go of either button.

Re: Back button focus

kevinb — Wed, 14 Nov 2012 16:22:41 GMT

This is the very first thing I do to a camera. Been set on my 7D since day one, and when I borrow any other camera, it must be configured!!