Sunday, September 26, 2021

SMC PENTAX 135MM F2.5 (6 ELEMENT) K MOUNT

One of the bokeh monsters I decided to get was the SMC Pentax 135MM f2.5 (6 element version, 35ft at infinity markings and aperture marking "4" at yellow triangle marker) by the Asahi Optical Company of Japan. This is a 6 element 6 group version, sharp corner to corner wide open, and apparently has a cult following. I am now officially a cult member!

This lens started production from 1975, now it costs around USD100 on ebay for a decent unit.

The 135mm came highly recommended by several connoiseurs of bokeh; it has a high repute as well built old school all metal construction with considerable sharpness corner to corner with high color fidelity. 



SMC Pentax 135mm f3.5 with K&F Concept PK-E mount adapter and a Nikon lenshood.


SMC Pentax 135mm f3.5








Shots from the front garden in late afternoon light, the sun was low on the horizon.


Fall colors in the garden wit SMC Pentax 135mm f2.5 (6 groupds 6 elements)


I love the bokeh shot wide open and the sharpness just bawled me over. I'm thinking of getting a second unit, a worthy keeper for an almost 60 year old lens.

No comments: