Af mode of choice when shooting moving people?

Started 3 months ago | Discussions thread
Paul P K
Paul P K Contributing Member • Posts: 612
Re: Similar to shooting catwalk

jkjond wrote:

Paul P K wrote:

ands onl would add delay between seeing/getting a subject in focus by pushing the AF button with the thumb, and the having to switch over to taking the shot bu pushing the release button with the index finger

This is misleading.

The process is seamless and has no delay. Thumb for focus, shutter finger for exposure. For continuous focus you keep your thumb pressed down until after you have taken the shot, for single focus then recompose it is a quick dib with your thumb then take your thumb off recompose and shoot with your finger (harder to describe than to do). It doesn't affect your grip on the camera and your thumb isn't doing anything else - seamless.

The best part of using back button focus is you never need to change your camera focus settings, you have the best of both worlds, for no adjustment needed (other than the initial mental adjustment to working that way). The one time I adjust my camera focus settings is the day I first use it.

The only drawback once you get used to back button focus is if someone else needs to use your camera who has no clue how to use it. Not really a prob.

No it's not, especially given the extremely short shutter lag and AF response time of today's modern DSLR's like the D4S, D850 (which I have personal experience with owning or having owned them) etc

Why annoy yourself constantly having to push two buttons all the time, when the camera will focus and refocus just as well when pushing the release button with the AF couple with that?

Back button AF is great in AF-S mode with a static subject when you want to lock focus and recompose (although simple manual focusing will do the job just as well in that situation

Based on real world experience 40 years of shooting high end catwalk (including Paris, Milan and London) https://pbase.com/paul_k/catwalk

And 5 years of shooting professional surf, an interest alongside my fashion work (from 2005 till 2010) including Quicksilver Pro https://pbase.com/paul_k/surf_main

And those subjects do move faster then a bride and groom walking down the aisle

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all in a day's work
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