How do you adjust back focus on a D800
Mar 28, 2020 05:24:58 #
Pistnbroke
Loc: UK
Just bought a very cheap D800 with back focus off the scale ( +40 ) .Is it possible to get it back to normal ?
Mar 28, 2020 05:50:36 #
Are you referring to the AF fine tuning? Nikons only go from -20 to +20. It only works with lenses that have a CPU. I adjust that on my Nikons.
Mar 28, 2020 06:14:57 #
Pistnbroke
Loc: UK
No not the AF fine tune. +20 does not pull it in its right off the scale needing maybe + 40 but of course it dont go that far. any suggestions?
Mar 28, 2020 06:23:24 #
Mar 28, 2020 06:35:12 #
Pistnbroke wrote:
Just bought a very cheap D800 with back focus off the scale ( +40 ) .Is it possible to get it back to normal ?
All lenses or just one lens?
Nikon can and will fix it. But they are closed at the moment.
Mar 28, 2020 06:38:54 #
Pistnbroke
Loc: UK
It was declared as having back focus issues which is why it is cheap ( $280).
But can it be fixed? All lenses
But can it be fixed? All lenses
Mar 28, 2020 07:51:14 #
Pistnbroke wrote:
It was declared as having back focus issues which is why it is cheap ( $280).
But can it be fixed? All lenses
But can it be fixed? All lenses
Call Nikon when they open again.
Mar 28, 2020 07:58:25 #
Mar 28, 2020 08:43:49 #
Pistnbroke wrote:
No not the AF fine tune. +20 does not pull it in its right off the scale needing maybe + 40 but of course it dont go that far. any suggestions?
I had a Nikon D7000 that had a severe back focusing issue. No amount of AF fine tuning would correct the issue. The same lenses I used on the camera focused accurately on my other camera bodies. It was known that a small number of D7000's had that problem. I ended up returning that one and ordered another one from a different company. The new one was fine - its autofocus was well calibrated.
I've contacted Nikon to see if they offer a AF calibration service. I was told that they don't offer that service. Canon does offer the AF calibration service for $179. I wish Nikon did.
I don't think anything can be done for your camera unless there's a technician who can re-calibrate the AF.
Mar 28, 2020 08:47:24 #
Pistnbroke
Loc: UK
Its a second hand D800 from ebay at only $280 so we need to mend it at home not at Nikon ...anybody have the answer?
Mar 28, 2020 08:52:13 #
Pistnbroke wrote:
Its a second hand D800 from ebay at only $280 so we need to mend it at home not at Nikon ...anybody have the answer?
The phase detection AF sensors are at the bottom of the camera. It would take a technician with the right tools and training to re-calibrate it.
Mar 28, 2020 08:59:59 #
Mar 28, 2020 09:01:24 #
Mar 28, 2020 09:03:40 #
Mar 28, 2020 09:18:31 #
Pistnbroke wrote:
yes OK in LV and manual............CO is on the right track.
My only idea in that case is to reload the camera firmware, just as something to try until Nikon reopens, but I wouldn't have high hopes that would work.
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