New lens ordered

[Chewbecca]

If you camera has an on-camera setting for it (in menus or physical), the lens will tend to not have it on the lens itself. That is the case with the Sigma 10-20 for the Nikon line.

Well, crap.
Next time I won't add my $.02 when I don't really know wtf I'm talking about.

 

[manaheim]

Well, crap.
Next time I won't add my $.02 when I don't really know wtf I'm talking about.

hahah... no worries, dude. I'm mainly full of crap anyway. I'm just waiting for Helen to swoop in and conk me over the head with her massive repository of photographic knowledge.

 

[hoboahoy]

Manaheim & Chewbecca, thank you for clarifying. Basically you are saying the AF lens can be driven to autofocus either by the lens's own internal motor, or by the camera body's motor, correct?

I don't want to hijack the thread so I'll stop here. Congratulations again, Tom. I'm getting this lens too.

 

[manaheim]

^^^ If the lens is designed to be driven by the camera AND the camera has a motor to drive it, then it will be driven that way.

If the lens has an internal AF motor, it will be driven that way.

 

[Dhoover]

There are 2 types of AF lenses which have no motor and Af-S which has a motor built in, D40/D40x and D60 owners need to buy Af-S lenses if you want auto focus everyone else gets to use regular AF lenses

 

[hoboahoy]

Manaheim & Dhoover, ok then some rather less expensive camera bodies need the AF-S lens to autofocus, whereas others bodies already have a built-in motor to drive the AF lens. I got it. Sounds like I better get a body with the AF motor in the body so it can accomodate more AF lenses. Thank you.

 

[D40]

I used to own the D40 and yes you need lens marked "AF-S" to auto focus. You can also get Sigma lens that have "HSM", they will work as well. My Sigma 70-200 f/2.8 HSM Macro worked on my D40 just fine