Thank you for all your answers
So what I get from this, is that if I want AF, the 1,7 pentax is my only option. Am I right? I really need some AF atleast, since the K-x is not ideal for manual focus, and I use glasses, so it's a bit difficult sometimes. Not to mention in dead slow
.
Too bad all the glass I want is no longer beeing made, and rare/super rare.
The DA * 300 + 1,7 TC seems the best choise so far. That would give me a 510mm f7,1 right? Good for some really good light situations I guess. But I can just use the 300mm alone in those days, and just accept that some will be out of reach
Is there anything I need to look for when buying a used 1,7 tc? Any bad copies ect.