> Today I happened to find the current EF lens brochure
> at my local camera shop (I've had only the "L" brochure), and while it
shows
> only the Mk. II version of the 28-105, the 20-35/3.5~4.5 remains
unchanged, and
> since the original 28-105 and the 20-35 share the same instruction sheet,
and
> the 20-35 is shown in the brochure as having FTM, I feel it is safe to
assume
> that my 28-105 also has FTM. I agree that FTM is of limited utility if you
don't
> shift AF activation away from the shutter button, and when I want to focus
> manually I switch to MF mode, but I also often focus manually when I first
start
> to frame a shot, rather than activating the AF and metering (and causing
> unnecessary battery drain), and since I usually don't switch to MF mode
when
> doing so, the wording of the instructions had me a bit concerned that I
might be
> damaging my lens. This doesn't seem to be the case, however.
>
> Craig
I believe I'm using a custom fuction on my EOS 10 to allow manual focus
touch up in one shot focus mode. It's working well - of course in servo
mode, no touch up is allowed at any time :-)
I find it handy to shift the DOF a bit sometimes manually. In any case,
I leave this custom fuction on all the time. I tried putting focus control
on the auxilliary button, but I lose partial metering then, plus that button
is too hard to hold and use. I generally also only have the centre focus
point active. I can't quite figure out why anyone would want more focus
sensors - how the heck can the camera tell which thing I want to focus on?
Only I know that.
Jim
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