Sigma lens not focusing
Jan 4, 2019 12:00:09 #
Lesm1
Loc: Poughkeepsie
I am new to this forum. I wonder if any one else has had a problem with focusing a sigma 85mm1.4 on a Nikon 850. All my other lenses work ok.
Jan 4, 2019 12:09:54 #
Lesm1 wrote:
I am new to this forum. I wonder if any one else has had a problem with focusing a sigma 85mm1.4 on a Nikon 850. All my other lenses work ok.
More info please. Are you talking Manual focus, auto focus? Does it show focus at any depth. What all have you tried to correct it? Any info you have would be helpful.
Jan 4, 2019 12:12:51 #
Lesm1
Loc: Poughkeepsie
I tried it on auto focus, BBF. I can manually focus no problem. Other Sigma and Nikon lenses work fine
Jan 4, 2019 12:12:53 #
If it's an AF lens, maybe the contacts on the lens need cleaning....
Jan 4, 2019 12:19:06 #
or the op hasn't admitted that there could be an adapter involved which would lead me to say the lens can't locate infinity..
Jan 4, 2019 12:20:15 #
Jan 4, 2019 12:24:02 #
Lesm1
Loc: Poughkeepsie
Cleaning the contacts did the trick. Thanks to all for quick and helpful advise
Jan 4, 2019 12:51:12 #
Lesm1 wrote:
Cleaning the contacts did the trick. Thanks to all for quick and helpful advise
I'm glad you were able to correct your problem.
Jan 4, 2019 12:52:37 #
Jan 4, 2019 13:53:36 #
Lesm1 wrote:
I am new to this forum. I wonder if any one else has had a problem with focusing a sigma 85mm1.4 on a Nikon 850. All my other lenses work ok.
I had a Sigma 90mm macro that stopped focusing. Sent it to Sigma under warranty and they repaired it, n/c.
Jan 4, 2019 14:59:56 #
Jan 4, 2019 15:34:12 #
Lesm1 wrote:
I am new to this forum. I wonder if any one else has had a problem with focusing a sigma 85mm1.4 on a Nikon 850. All my other lenses work ok.
I am guessing this was the older 85mm F1.4 DG HSM lens and not the newest 85mm F1.4 ART lens?
Jan 4, 2019 15:41:49 #
Lesm1
Loc: Poughkeepsie
It is the newer art lens that I have not used in a while, and the contact cleaning solved the problem
Jan 5, 2019 08:14:35 #
billnikon
Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
Lesm1 wrote:
I am new to this forum. I wonder if any one else has had a problem with focusing a sigma 85mm1.4 on a Nikon 850. All my other lenses work ok.
This unfortunately is not unheard of with Sigma lenses in general. Call Sigma and see what they recommend.
Jan 5, 2019 08:43:58 #
Lesm1 wrote:
I am new to this forum. I wonder if any one else has had a problem with focusing a sigma 85mm1.4 on a Nikon 850. All my other lenses work ok.
Send it back to Sigma and don't waste your time messing around with it. I just did so for my 50mm Art lens and Sigma readjusted focus and it is so sharp again, just like when it was new. Overall, took about 3 weeks turn around time.
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