heftylefty
golfmkv elitist -_-
- Location
- issaquah, WA
Becasue the D40 does not have an internal focusing motor, auto focus functionality will only work on newer AF-S lenses that have their auto focus motor built in. So you wouldn't be able to use the auto focus functionality on, say, a Nikon 105mm AF Micro or the ever popular 50mm 1.8D AF which rely on a cameras internal focusing motor to focus.
pretty much nailed it lol