is this lens has auto focus ? control from Camera? built in motor? or this is still manual Focus lens?
1390593
It auto focuses with a flathead screwdriver on the camera body that engages a slot on the lens and a motor in the camera controls focusing. You lock the aperture ring at its minimum aperture (f/22) to hand over focusing to the camera . This lens will be a manual focus control only on the D3000 and D5000 series. Some DX cameras have screw drives such as the D80,D90, D7000,D7100,D300. All FX cameras have a screw drive.
1390594
I'm told it doesn't auto-focus on camera models ending in X......but I'm not an expert.
2018742
This lens is manual focus. I use it with a canon 5D II. It is very sharp and well worth it for full frame cameras. I use it strictly for tripod landscape shots.
1926437
It is but it won't have auto focus. And u will have to set Aperture manually. But otherwise it's a great lense with fantastic shallow depth of field!
846038
This is a purely manual lens. It does not auto focus on any camera body. If you buy the chipped version of the lens, you can set aperture from camera and you can see the green dot in view finder that helps in manual focusing.
317567
It is both manual and auto focus in both still image and video modes but in lowish light in video mode it hunts a lot, getting the focus wrong more often than not but thats a function of the camera. Not the lens. That said, it's an excellent lens but it should noted that it does not have image stabilization.
705680
It IS an autofocus lens. I suppose some vendors just don't include that in the description. Hope that answers your question.
376020
Yes, this is a totally manual lens. You will need to set your camera to manual. Being very wide angle the focus is very fir giving. I'm very impressed with how sharp it is.
465046
The zoom is totally manual...you control it manually. I think your question is: does the lens keep the subject in focus as yous change the zoom focal length? Yes it does.
1552069
I am not sure. Auto focus works good,but manual focus grinds like sand in focus area. Still my favorite lens. Normally use auto focus unless can't get the shot I want
352996
85mm is amazing lens, crisp images. Great for portrait shoots. The problem is it is a manual focus lens. It takes time to get good using it but its worth the price.
1981981
No this lens doesn't have a built in motor to focus so it relies on the camera body to focus. The D3100 doesn't have the auto focus motor on the body like the D300, D700, etc. You could use it as a manual focus though on the D3100.
612653
yes, it has an auto-focus, but at times, it cam be sort of slow, but overall, it is a very good lens.
647483
This lens is manual. the aperture is controlled by the ring that is in the lens and not the camera.
1968819
This lens is manual focus only. Keep in mind, this is an inexpensive lens. A good lens for the money, but it isn't a "super duper" $15,000 - $20,000 Nikon or Cannon lens. I bought this lens for "playing" purposes.
809207
It does use the camera body motor to focus. It is not the quietest but it's very accurate and quick. One of my favorite lenses!
1745491
Yes it does, that's the camera I have. It does have the motorized focus also. Excellent lens!
673923
No it doesn't have a built in focus motor. Those lenses will have the AF-S designation. The 18-200mm will work with the D3200