M42 > K mount adapters back in the day.
Expensive...maybe. Value for money ...definitely.
Peter
My Flickr page
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses
davidwozhere
Member
Slap in the middle of England
Both the *istDS and the K5 are incurably addicted to old glass
My page on Photocrowd - link