Showing posts with label detach af from shutter. Show all posts
Showing posts with label detach af from shutter. Show all posts

Wednesday, November 3, 2010

More accurate and sensible focusing for your Nikon or Canon

Recently, my friend Daniel Milchev (www.photovenom.com)  separated the focus away from his shutter button and instead using the back AF-ON button.  The idea is very simple and I've finally adopted this smart method.  With the focus no longer a part of the shutter button, it's much easier to pre-focus for action images.  It also becomes simpler to run continuous focus when shooting action coming towards you.

Why does it work?  When it comes to pre-focus, I find that I'm often setting my focus on a certain point that is about the same distance the athlete will be away from me.  The problem is that occasionally no focus points cover that location so I have to recompose the image after setting my focus.  With the back AF button, I can simply lock in my focus and recompose the image.  No more switching to manual focus or holding down the shutter half way to lock in the point.  Instead,  press the AF button on the location you want focus, release the button, recompose, and shoot away.

With this setting you have the ability to CHOOSE when you want to focus.  The camera won't try to re-focus every single time you hit the shutter button.  This makes things much simpler so that you will no longer have to switch to manual focus or press AF-Lock to maintain focus on the point.  It even works better than the AF-lock button since you no longer have to hold the button to ensure it maintains focus.