My Nikon 18-200 lens on a D300 camera will not focus when it is zoomed between 135mm and 200mm. Is there any tips on how to solve this besides handing it in to a photo store?
Just a note. I found this thread while researching the same issue, though the range that wouldn't focus for me was more like from 80ish to 200. After reading the comment by GRM, I investigated my lens and found the front element to actually be loose, having backed out on its threads. As I never take the UV filter off, I never would have found this with out GRM's comment. I tightened the element snugly, trying to resist my urge to torque the crap out of it, restored my UV filter to its rightful place, and bam. Autofocus issue appears to be fixed. Thanks, GRM.
Thanks to James Duncan for his solution, which solved the problem instantly. My front element was loose, so I gently snugged it down (about one full turn clockwise) and VOILA, problem solved. My lens now focuses at all focal lengths. There is a notch in the outer ring of the front element (on the outside); I just placed a fingernail in the notch and gently turned until it stopped. What a relief!
[...]bunch more users finding the fix works for them
I finally enter the world of DSLR, with the Nikon D3200, all I know is I have a lot of learning. I only have the 18/55 lens that it came with, so the next purchase for it will be a new lens.
Two new goodies that I got at the March? aux Puces in Paris a few days ago:
Coronet 6x9 "Depose":
It seems to operate fine (then again it seems to have only one moving part), so I'm going to get a roll of 120 film for it this week end.
Thanks for the tip! I just gave it a quick try and can't see any light leak, from the bellow, I think it should be ok!
I'm a bit worried about picking the right film though, as it's fixed to f/11 and 1/50th second. I'm thinking ISO 100 should be fine for a sunny day. Maybe a 100 T-Max