Quick question - after some help with the K10D for use in panaramas.
In manual mode - how do I lock focus? I have found 3 ways, neither overly satisfactory
1) try to keep half pressed --- very tricky
2) try to keep AF button pressed --- quite tricky when holding camera in portrait and trying to hold steady and pan properly
3) half press to AF then switch to MF --- tends to lose focus as you brush the barrel. (The focus rings i'm using at least - Sigmas - are very loose when in MF mode.)
Is there another way?