I shot with it out in the Kansas Flinthills 10 years ago, camera mounted to a Pentax Spotmatic body, and was disappointed with the amount of milky flare in the images.
The lens went into retirement until today.
I did a little cleaning with alcohol on the rear glass surface, but do not think it helped much.
It was a bright sunny morning with lots of white snow and ice on the ground, and I thought it would be good conditions for a re-test.
So I used a screwmount-to-K-Mount adapter ring and mounted the lens to my Pentax ist d Digital SLR body.
Results below. After a little tweaking in software, I thought some of the images were not so bad after all. The lens delivered a pleasant enough look for me to decide that the lens is not a total loss.
Lens is very solid and heavy, with "preset" style aperture rings. Focus is smooth, and accurate. I shot in Av aperture priority mode, first wide open at f/3.5, then stopped down to about f/11. The f/11 setting gave noticeably better results, but needed exposure adjustment in the software, even though shutter speed was about 1/500 to 1/750 with asa set to 400.
Everything was hand held. Lens is heavy enough to stabilize the whole rig through mass inertia.
Please click on thumbnails to see enlarged.
All images are Copyright 2013 E.J.Kowalski.