I put a Vivitar tele converter on my 70-300 lens. It went on easy but wont come off. How do I get the thing to come off my lens? I have a Nikon D3000 camera.
I'm struggling to figure out whether there's a teleconverter (available in the UK now) that will go between a Sony Alpha A77 and a Tamron lens. There seems to be some recommendations I could find, but ...
I'm using a Nikon D800 with a Tamron 70-200 DI VC USD lens. For a upcoming trip I want to know whether it is possible to use the said combination with a 2x teleconverter. On several websites I read ...