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Nikon lens motor Anonymous
Canon has the autofocus motor in the lens and there are a few different types of motors.

AFD, micro motor, micro USM, ring USM.

The main difference being focus speed and accuracy.

So when Nikon has the lens motor in their camera bodies, are there different types of motor depending if you get a low end camera and the pro models? If so, what types are there?

Also, AF-S lenses have a silent wave motor, which I assume is like Canon's USM. Is it like micro or ring USM? And again, are all AF-S lenses using the same motor or cheaper AF-S lenses have slower motors.
>> Anonymous
Nikon has 3 types of motors.
AF or AF-D = focus driven from the camera body
AF-I = internal micro motor
AF-S = ultrasonic motor, Nikon doesn't specify the type, but looks like they're all ring-type.

>are all AF-S lenses using the same motor
Of course no. The diameter of a ring-type motor will vary depending on the diameter of the lens barrel, obviously. The focusing speed varies from lens to lens and is not directly dependent on price.
>> Anonymous
Ooops, sorry. When I said "are all AF-S lenses using the same motor" I meant are they all ring type.

Just one more question:

>> are there different types of motor depending if you get a low end camera and the pro models? If so, what types are there?
>> Anonymous
bump
>> Anonymous
>>135174

Generally speaking, the "low-end" lenses have "low-end motors." But, the determination as to what is low-end and what is high-end is largely subjective. The 18-200 VR costs a lot of money, but isn't a high end lens.
>> Anonymous
>>135174
Yes. When looking at the spec sheet, see what autofocus module it's using. A better one will help AF speed and accuracy.

Interestingly, focus speed and accuracy also improve when you upgrade your Canon body, so it's not a matter of a motor as much as it is sensors and such.
>> thefamilyman !!rTVzm2BgTOa
>> are there different types of motor depending if you get a low end camera and the pro models? If so, what types are there?

generally low end bodies have 'non super critical' focus motors, just for your family snaps. The pro bodies the AF is perhaps one of the most important aspects of the camera as it means money making money for a sharp photo for the professionals (see 1Ds MkIII)

My F60 AF speed is sloooooow but always spot on accurate.
My D70 is not bad, its not too slow nor speedy, also its always spot on for me.
My F5 is brutal, said to be the fastest of any Nikon AF body.
My FA, well its as fast as i can move my hand.

Nikon's MultiCAM has always been a great AF system.
>> Anonymous
>>136568
>F5 is brutal
I heard rumors of F5 breaking the plastic gears in cheap sigma lenses, lol