Originally posted by UncleVanya I haven't become a convert of back button auto focus. My major annoyance is the physical placement of the af button on my k-3. It feels awkward to shift my thumb up that high.
Originally posted by Culture I shoot two bodies, a K-30 and a K-3.
The placement of the botton on the K-30 is quite natural for me. I dont have to look where my thumb is. Its naturally is in place.
With my K-3 how ever. I have to keep reminding myself to move my thumb higher. Where it feels natural on the K-3 is actually where the play button is.
The confusion comes a lot when I am slinging both bodies at an event.
It's interesting how individual differences come into play in regard to BBF "naturalness".
1. For me, the AF button's placement is perfect on the K-3.
2. On the K20D, the AF button is placed too far to the left for me, making it less "intuitive" for my thumb's "muscle memory" to quickly and naturally apply it for BBF.
3. For the ol' *ist DS (my go-to cam used for "gear shots" for selling gear, with an A 50/2.8 Macro and an AF080C mounted to it semi-permanently), there is no AF button to customize. However, I have the OK button customized in an attempt to have it act as the AF button while shooting, but (unfortunately) it is also too far to the left (and too low as well) to make for quick "intuitive muscle memory" use by my thumb for BBF (not for AF but for focus confirmation use with the A 50/2.8).
I suppose everyone has his/her own favorite and not-so-favorite spots for the "BBF button" to be located, and his/her satisfaction would likely vary by camera body.