PENTAX MX-1 A high-performance digital compact camera, featuring a large-aperture optical 4X zoom lens, a 1/1.7-inch back-illuminated CMOS image sensor and a tilt-able LCD monitor | RICOH IMAGING
Amazon.com : Pentax A 50mm F1.7 SMC Manual Focus Lens for Super Program Camera : Electronics
Pentax-F 50mm 1:1.7 Prime Autofocus SLR Camera Lens - YouTube
Asahi Pentax K1000 SLR 35mm Film Camera SMC 1:1.7/50mm
Pentax 1.7x SMC Pentax-F AF Adapter - Accessory – Kamerastore
PENTAX MV with SMC PENTAX-M 1:1.7 50 mm Lens 35mm Film Camera | eBay