Nikon telephoto lens zoom ring turns but will not extend lens but will retract it if I manually extend the lens! What is causing this and is it something that I can fix myself?
is it something that I can fix myself?
The answer to that is almost certainly "if you have to ask the question, the answer is no". For a bit more detail, have a look at this teardown of a zoom lens by Lens Rentals - if that looks like the kind of thing you'd be happy to try, you might get lucky and be able to spot an obvious problem in the lens which you can fix. If like the vast majority of us that looks incredibly scary, then no, you definitely can't fix it.
Assuming you're not going to fix it yourself, you have two options:
- Get it repaired by a professional
- Junk it and get a new lens
Expect to pay at least a few hundred dollars for a repair; unless it's under warranty or is a top of the range lens, it's almost certainly not worth it.