What you see here is a truly unique lens! Thanks to its unique REFLEX design, it is the most compact 150 mm lens I have ever seen. It also supports full autofocus…which, in my opinion, is also a world first? Correct me if I am wrong.
Here are the know specs:
Kase 150mm f/5.6
- Full Frame
- Autofocus
- 67mm filter size
- AF/MF switch
- E-mount (probably Z and X mount coming to?)
Of course we all know that REFLEX lenses have inherently a slightly worse optical performance that lenses with a “regular” design. But int this case you might be willing to accept the compromise because no other lens gives you that reach in such a small size. Kase made a bunch of regular E-mount lenses and also some Reflex lenses you can find on those pages at Amazon and BHphoto.