If I am using a manual focus lens does that cause any problems with the focus thingy on this unit?
1390337
James, I use this on a Nikon D4, D800 and D300 and use back button focusing on all bodies (the shutter release is disabled for focusing which is the equivalent of manual focusing for the purposes of this conversation) and it works great! I really like this remote.
1390338
I wouldn't think that would be a problem. You're going to pre-focus, so your camera will know that. Should work.
678439
My EOS-1Ds Mark III arrived about two weeks ago around the first of Dec. Certainly there are no focus problems on any lens I've tried, and I have 8 or 10. In fact, one can "tweak" the focus for each lens. I've not seen the need for this rather technical step, however, and should I, then I'll do it professionally with correct charts, lighting and so on. It can be redone, though, so any errors can be corrected.
1172380
Probably not. I love my camera, but Focus would not address any complaints I had about some of the other "junk" included in the package.
1564625
I used this lens for one year until yesterday without any problems. Just yesterday I am experiencing the same issue: quite focus hunting when zoomed out at 70+ and when it stops it is not on focus! Any idea?
2012320
Yes. Zoom and Focus are manual with the inner ring for the later. It s a little bit to freaky not so gradual control. Its endless so no physical connection with lens I guess.
2006134
Yes you can manually focus this lens. There are focus and zoom rings on the lens. You just need to set the camera to manual focus mode to do it.
1354312
No. Auto focus cant work because u must put camera mode to manual , the "lens" is the scope, you must focus with the scope. Be sure to realize a collimation process to your scope , if needed, to get better results, better pictures.
888898
As stated by the other respondents, yes it has autofocus which can be switched off to manually focus. I've had no issues with the autofocus on my Canon 40d. I also own a sigma 1.4 teleconverter. With the teleconverter on the autofocus doesn't work and you have to focus manually. I've found that 500 is usually plenty of range so honestly I've only had the teleconverter on it once and then only to play around. I was also highly impressed with the OS (Optical Stabilization) on this lens. It is very heavy, but with the OS it is actually not nearly as hard to hand hold as I thought it would be. (But I always use a tripod if I can... no kidding it's very heavy!) Hope this helps! -ed
629972
Yes but you must use manual setting on your camera and you must manually focus
2012319
Yes. Zoom and Focus are manual with the inner ring for the later.It s a little bit to freaky not so gradual control.Its endless so no physical connection with lens I guess.
872972
Not well quite simply. The maximum lens aperture is not a small enough f/stop number, you will lose autofocus and unless shooting in very bright light on high contrast subjects even manual focusing may be difficult.
831366
Yes and no. There have been a few alarming SDM/Autofocus no-work moments, but a remount of lens and camera on/off has always fixed them immediately. We both use this lens all the time, so counting the one I smashed, we have direct experience with 3 of them.
890953
Yes I received mine a week ago and the lens crashes into the filter; not just in macro but any time the camera struggles to focus. Reading online apparently the lens can protrude a little when focusing causing the crash. I think I got a lemon so the adapter ring is going back.Update: nevermind I'm just a dumbass. I had accidentally assembled it in the wrong order. All is good and focus works fine. Since it is possible to put together backwards it makes me wonder how many of the focus reports are just user error.
1436640
No. You have to use the manual focus. I do not think this is an issue because the NEX has focus peaking where it highlights the areas that are in focus.
2186068
Yes. It's a manual focus lens so there's no Auto Focus compatibility to worry about.
587931
If your lens has an M setting (most do) you can focus manually in all camera modes. You may not like the results, however so be sure to try all the options and practise a lot. Have fun!
1321063
AutoFocus was fine. Some circumstances, e.g., bird watching, require manual focus.