What is the best lens for...
- around 135mm-150mm eq. (70-85mm)
- smallest possible (with a small adapter)
- F2.8 or faster
- with Excellent IQ
- Less than $750
- Mostly used for portraits
Currently I'm considering the Pentax 77mm F/1.8. It's fairly small and fast lens, but the adapter makes it bigger than what I hope to have.