Recent content by kmahurin

I bought a telephoto lens by opetka, it's a beginner telephoto lens and a T mount to connect to camera. It says no lens attached after I set it up. I have read that you have to set it to manual which I did and it's still saying no lens. Is there something else I have to do?

I have a Nikon d3300 and recently bought a telephoto lens which required a tmount. It says no lens attached and I know it's because I have to set things to manual. What do I need to switch and how?