"back-button/thumb focusing" on my D100

I've heard much talk about "back-button focusing" but have never been

able to find it's equivilant on my D100. Apparantly, you can set the

asteriks ( * ) button on Nikon cameras to be the focus button via

custom functions - but I see no asteriks nor do I see a place to set

the asteriks as the focus button! According to another source, the

Nikon equivilant of the 'back button' is "the AF-ON button-- the

little bumpy one beside the AE-L and AF-L one."

I am rather lost, as the D100 does not, as far as I can see, have

a 'little bumpy thing beside the af-l and ae-l.'

<br><br>

Can anyone help me?

<br><br>

/daniel

The bumpy thing is the meter-mode selection ring, and the buton

in the center of it is the AF/AE button that can be programmed as

you described. The choice is made in the set-up menu, and it's

pretty clear, as I recall. Give it a shot. I'd give you specifics, but

my D100 is at the office tonight.

Thanks Dan!

<br>

Now that I have been pointed in the right direction, I have found it! It is not in the set-up menu, but in the CSM menu, under # 14 (AE-L/AF-L), then AF - ON.

 

<br><br>

/daniel

The asterisk button is on Canons.

Hmm I guess Canon use an "*" because it's indicative of, well, a footnote.

 

;^)

I've been a back-button focusser ever since I got my D1H and I must say I prefer it to shutter button focussing by a long shot. I'll never have to hit that stupid AF-L button again when I want to freeze my focus.