Up for sale is a nice example of the classic SMC Pentax-FA 50mm f/1.7 lens in Pentax KAF mount.

Much less common than the Pentax-FA 50mm f/1.4 and Pentax-F 50mm f/1.7s, this lens represents the most advanced version of the 50mm f/1.7 lineage that began with the M series and is well known for its lovely, contrasty image rendering and excellent sharpness.

Lens is in excellent used condition with light handling wear/barrel scuffing, perfect mechanics, and glass free of scratches/haze/fungus.

Includes caps!

This lens features the “AF” version Pentax K mount, which can be used natively on all Pentax K mount SLRs and DSLRs, with mechanically coupled aperture on early K mount film cameras and electronic coupling and autofocus available on later Pentax film cameras and DSLRs. It also can easily be adapted for manual use on most popular DSLR, and mirrorless formats with an inexpensive adapter ring (sold separately, see chart below for digital compatibility).


If you have any questions about whether this lens is adaptable to your camera system, please contact me before purchase.



Digital mount compatibility chart

Mount

Adaptable?

Glassless Infinity?

Notes

Canon EF DSLR

Y

Y*

* Some lenses require minor modification for use with Full Frame Canon cameras.

Nikon F DSLR

Y

N


Pentax K DSLR

NATIVE

NATIVE

Autofocus with electronic aperture coupling available in “A” mode.

Sony A DSLR

Y

N


Sony E Mirrorless

Y

Y


Panasonic/Olympus 4/3 DSLR

Y

Y


Canon EOS M Mirrorless

Y

Y


Canon EOS R Mirrorless

Y

Y


Fuji X Mirrorless

Y

Y


Leica/Panasonic/Sigma L

Y

Y


Panasonic/Olympus m4/3

Y

Y


Nikon 1 Mirrorless

Y

Y


Nikon Z Mirrrorless

Y

Y


box 1271