Northstar: No I did not know that 'one shot' is sharper than servo for still objects. I thought is was about getting focus, not the way one got focus. And I believe that once I get focus and I remove the thumb from the back focus, I am as good as 'one shot'. Am I wrong?
Having said all of this, I am positive that I am missing something... I will get it one day and go 'yeyyyy'.
Hi Sanj, having seen your impressive Images & the things you like to Photograph, this might help to understand what is being suggested (I have certainly set my own Bodies up for this method).
Before the Firmware update Back Button could only be programmed for either AI Servo OR single shot.
That's still the same, but now we can set up the Back Button Focus Button for say AI Servo (Those Cheetahs at 80KPH)
And we can at the same time set up AE Lock Button for Single Shot Focus (Those lovely Bollywood stars I've seen you Photograph)
Under "normal" conditions your in the Bush Photographing a Cheetah @ 80KPH in the Serengeti, so AI Servo works best, but suddenly the most Beautiful Bollywood star on the Planet suddenly appears standing under a Tree 10 metres away (all thoughts of the Cheetah are now completely superfluous at this point), your AI Servo isn't the best way to capture this situation in all it's Glory, single shot is, gives you much better Focus Lock, you can focus on the eyes (or where ever you desire) and be a lot more confident you have excellent focus.
Prior to the firmware update you would have had to go into your menu system & change your Back Button Focus Button to single shot from AI Servo and that takes time, time to allow that Bollywood Star to become skittish and make a break for the tall grass, so now we can programme one button for AI Servo, the other button for single shot, and that Bollywood star is dead in the Serengeti.
Hope that helps, now........ all we need to do is get a Cheetah & a Bollywood Star into the same area......
I'll work on the Cheetah, I'll leave the Bollywood Star to you.