Recently I've found some articles that point to two lenses make for the Sony E mount as being unrivaled by any other DSLR lens.
1.
PhotoZone.de says "The Sony 135mm f/2.8 [T/4.5] STF remains the ultimate cream machine. Regarding the quality of its bokeh (out-of-focus blur) it outclasses all other lenses tested to date so if this is a #1 priority for you just bow to the inevitable and go for it to enjoy images as smooth as silk."
2.
Lloyd Chambers says "the Zeiss Batis 18mm f/2.8 Distagon is the finest 18mm lens ever to be produced for full frame cameras." .
If these two exceptional lenses were offered in the K mount I'd buy them both today.
Putting them on a Sony to Pentax K adapter is not an option for me.
While I will not abandon my Pentax K3ii or cancel my K1 pre-order and switch to Sony; I none-the-less am considering purchasing a Sony full frame mirrorless body just for these two lenses.
I already have a Nikon D7100 just to use with an outstanding Nikkor telephoto for birds and sports. I also own the tiny Fuji X-M1 strictly for using the exceptional Fuji XF 27mm pancake lens. So, adding another system (Sony) to my camera inventory just to use a couple of lenses isn't out of step for me.
However, before I buy any Sony equipment I think I'll wait to see how the K1 fairs. I do hope that the K1 is wildly successful so that makers of these two exceptional lenses some day offer them in the Pentax K mount. Using these lenses on the K1 would be much preferred by me to using them on a Sony body. So, I guess I'll just wait and see what happens with the K1 before rushing out and buying into yet another system.
Are there any other exceptional lenses out there that you bought into another system just to use?
Last edited by Fenwoodian; 04-14-2016 at 09:38 AM.