Nikon D300 - Page 271

3. Choose one of the two choices from the menu. In
Figure 4-10, image 3, Shutter/AF-ON has been selected.
4. Press the OK button to lock in the setting.
Here’s a description of the two selections:
▪ Shutter / AF-ON – Autofocus will be activated if you
press the Shutter-release button halfway or if you press
the AF-ON button.
▪ AF-ON Only – Autofocus only works when you press
the AF-ON button. The Shutter-release button will not
activate autofocus; it will only start metering and release
the shutter. There are two distinct needs addressed with
this
function. A few people need to separate autofocus and
shutter release. Most don’t. If you prefer to autofocus
only with the AF-ON button, you can set it with this
function. Otherwise, you’ll autofocus by pressing the
Shutter-release button halfway down. If you have
Shutter/AF-ON selected, you can autofocus with either
button.
My Recommendation: I use Shutter/AF-ON myself since
I’m primarily a nature shooter and don’t need to separate
autofocus from shutter release. I don’t have many fast moving
subjects, other than flying birds or leaping deer. And with
those, it just feels more natural to me to autofocus and fire the
shutter with one button.
However, if I were shooting a high-speed event and wanted to
maximize my camera’s firing speed (frame rate), I wouldn’t
hesitate to use AF-ON only, and I would change Custom
setting a1-AF-C priority selection to Release priority. That
271