Hi guys,

I'm new to the forum and new to dSLR. I've just purchased a Pentax K-x with the 18-55 and 55-300 kit lens'. I'm now looking to purchase a prime and was considering either an FA or an old prime Super Tamukar 50mm F1.4 as a portrait lens. Probably go the cheap older prime to start with.

To run the old M42 screw mounts I will need an adapter. From another thread I read the following...."The old m42 lens work really well on the K-x but make sure you get the adapter that allows focus to infinity, the cheap ones with the flange on E/bay don't. "

Can someone please point me towards the correct adapter that allows focusing to infinity?

thanks in advance.