Originally posted by clackers I think many would say avoid putting glass adapters (like teleconverters) on bodies if possible, K.
Particularly low end ones like this.
Not sure I follow, Krema.
The 70 would act as a 45mm or so FoV lens, and be a stop wider, effectively.
Where do the 105, 140 and 385 come into it?
Hello Clacker,
About the "speed booster" adapter, I did see a few threads here from last year about it being usable, but I didn't see any samples or follow-up posts going into details about the results. I could take a chance and try it out because I have a cheap NEX camera to use it with.
About the focal lengths, I would like to gain the most utility from any expensive lens purchase (expensive for me, that is). That's why I mentioned the Q, M43 and Sony cameras. With the 70mm Sigma mounted on each one with an adapter I'd get a range of focal lengths as well as the 105mm of the Sigma mounted directly on the K-01. With the speed booster on the Sony it should be about 75mm, which if its any good, would be a good setup for different applications - as opposed to buying a 100mm, 150mm and longer macros.