Sigma 70-300 giving F-- problem
Hi all,
I know this has been posted before, but I have not been able to solve this issue; hopefully you can help me out..
What happens is that sometimes, and intermittently, when I have my Sigma 70-300 mounted, my K10D seems to lose the aperture control over the lens; it shows an aperture "F--" (like on M lenses). If I fiddle with the lens a bit it comes back..
I have cleaned the contacts, on both lens and camera, and checked the mountscrews.. Nothing there. I hope this is not the end of my Sigma, I really like this lens! Any help appreciated.
Thanks!
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