▲ 2 r/tamron
Tamron A011 (SP 150-600mm F/5-6.3 Di VC USD) broken?
Hi!
In december 2015 I bought this lens for my Nikon D5200 and I was happy with it until now.
Suddenly and for no apparent reason (the lens was not harmed in any way), when I mounted the lens, the autofocus didn't work. Other lenses' AF are still working, so I guess it's not the camera's fault.
I already did the following:
- cleaned the camera's contacts
- cleaned the lens contacts
- switched from AF/MF and back multple times
- switched distance selector from full to 15m-∞ and back multiple times
- switched VC multiple times
- mounted and removed the lens while camera was on/off/without battery
What I could observe:
- MF is working, scale is correct
- VC is working
- aperture is working
- in MF mode the camera shows focus hints (green dot, left/right arrows)
- in AF mode the camera shows focus hints most of the time, but sometimes they vanish
- when I attach the lens while the switch is on AF the camera's osd shows AF as well
- when I switch the lens to MF, the camera's osd shows MF as well
- but when I switch back to AF again, the camera's osd remains on MF and there's no way to get back to AF apart from reattaching the lens
- I hear no motor sound except for VC (if enabled)
Unfortunately I have no other Nikon to test the lens with.
Do you have any ideas what I could try to make it work again?
u/OyiniPh8dau5eixu — 3 days ago