Issue with Sigma 180mm f2.8 macro focus
Jun 3, 2014 22:12:00 #
I purchased the Sigma 180mm f2.8 macro for my Nikon D7100 and D610. When I put the lens on the camera and adjust it for back focus issue it will focus, but not lock on focus as does the Nikon 105mm or the Tamron 180mm. The Sigma 180mm has OS and I am hand holding it as with the other lenses, however unlike the other lenses the Sigma will not lock on focus so the slightest of movements throws the focus off. Has anyone else experienced the problem with this lens?
Jun 3, 2014 22:17:07 #
May I suggest that you set your camera's A-F to small central spot. This should eliminate any alternative focus choices for your camera.
I rely entirely on A-F with my Nikkor 105G macro lens, for all my hand-held macro-photography.
I rely entirely on A-F with my Nikkor 105G macro lens, for all my hand-held macro-photography.
Jun 3, 2014 22:29:00 #
Jun 3, 2014 22:30:30 #
Brucej67 wrote:
I purchased the Sigma 180mm f2.8 macro for my Nikon D7100 and D610. When I put the lens on the camera and adjust it for back focus issue it will focus, but not lock on focus as does the Nikon 105mm or the Tamron 180mm. The Sigma 180mm has OS and I am hand holding it as with the other lenses, however unlike the other lenses the Sigma will not lock on focus so the slightest of movements throws the focus off. Has anyone else experienced the problem with this lens?
I'm sure you got big, steady hands to hand-hold a Sigma 180mm, but with my 150mm, most of the time I need to rest it on a tripod.
Jun 3, 2014 22:41:03 #
I strictly use manual focus for all my macro shots but then again, I'm using an older manual focus 105mm F2.8 macro lens from the mid 1980's...It's not an IF lens & thus gets pretty long (it's a bit heavy too)
Jun 4, 2014 09:32:59 #
He Thinks he does.....
FIDEL wrote:
I'm sure you got big, steady hands to hand-hold a Sigma 180mm, but with my 150mm, most of the time I need to rest it on a tripod.
Jun 4, 2014 09:43:21 #
What good is optical stabilization if you can't hand hold it for macro? It is just like all the macro lenses that are rated at f2.8 yet when shooting macro they only go to f4 when shooting distance with the same lens they go to f2.8. So if OS can't be used in macro then it is the same issue as the stated aperture of f2.8 when in macro you can only use f4.
sr71 wrote:
He Thinks he does.....
Jun 4, 2014 09:44:50 #
I will try this and see if I get better results hand held.
Nikonian72 wrote:
May I suggest that you set your camera's A-F to small central spot. This should eliminate any alternative focus choices for your camera.
I rely entirely on A-F with my Nikkor 105G macro lens, for all my hand-held macro-photography.
I rely entirely on A-F with my Nikkor 105G macro lens, for all my hand-held macro-photography.
Jun 4, 2014 10:11:29 #
If you read the instruction sheet that comes with the lens it will likely tell you that OS becomes less effective the closer you get to life size...I think only the latest iteration of the Canon macro lens instructions say otherwise as I believe they changed to a 5 axis stabilization......
Brucej67 wrote:
What good is optical stabilization if you can't hand hold it for macro? It is just like all the macro lenses that are rated at f2.8 yet when shooting macro they only go to f4 when shooting distance with the same lens they go to f2.8. So if OS can't be used in macro then it is the same issue as the stated aperture of f2.8 when in macro you can only use f4.
Jun 4, 2014 11:33:45 #
Sounds to me like a problem I had with my 150-500mm.
Does it constantly seek focus? Can you hear the motor constantly working?
If so, it needs a sensor adjustment or replacement.
If it's under warranty, Sigma will do it for free and probably update the firmware, too.
If you're near a Sigma facility walk it in. They can do it in 1/2 hour.
If you're not near, contact them for shipping instructions.
Does it constantly seek focus? Can you hear the motor constantly working?
If so, it needs a sensor adjustment or replacement.
If it's under warranty, Sigma will do it for free and probably update the firmware, too.
If you're near a Sigma facility walk it in. They can do it in 1/2 hour.
If you're not near, contact them for shipping instructions.
Jun 4, 2014 14:20:14 #
Indi wrote:
There is no sensor in the lens. To my knowledge, Sigma does not make DSLR cameras, nor will "adjust or replace" any Nikon camera part.If so, it needs a sensor adjustment or replacement.
If it's under warranty, Sigma will do it for free and probably update the firmware, too.
If it's under warranty, Sigma will do it for free and probably update the firmware, too.
Jun 4, 2014 14:46:42 #
He probably meant the chip in the lens Douglass... BTW, Sigma does make cameras... I had a DP2s P&S & it has the same Foveon sensor that their DSLR's have.
Nikonian72 wrote:
There is no sensor in the lens. Sigma does not make digital cameras, nor will "adjust or replace" any camera part.
Jun 4, 2014 16:24:52 #
This refocusing issue is a good reason to consider BBF. Assuming the lens is working as is should.
Jun 4, 2014 17:32:44 #
Nikonian72 wrote:
There is no sensor in the lens. To my knowledge, Sigma does not make DSLR cameras, nor will "adjust or replace" any Nikon camera part.
A few months ago I had to bring my 150-500mm in to Sigma here on Long Island. They were extremely accommodating, especially in light of the fact that I found out it was Grey Market. I had a similar problem to the OP.
They told me it was a sensor problem with the lens and updated the firmware as well.
I waited in the lobby 20 minutes and they brought the lens out completely repaired...free of charge.
BTW while I was waiting, I glanced through some if their brochures for lenses. AND cameras.
BTW 2. I bought the lens from RHYSER CAMERA. That should tell you something.
Jun 5, 2014 03:08:15 #
Indi wrote:
A sensor converts light to electrical impulses. A photographic lens has no sensor. A lens focuses light to the sensor located within the camera body.They told me it was a sensor problem with the lens and updated the firmware as well.
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