Pentax smc FA 50mm 1:1.4 review: Digital Photography Review
Amazon.com : Pentax smc PENTAX-FA 50mmF1.4 Classic, Single-Focus, Standard Lens for use with K-Mount Digital SLR Cameras ND Filter Included : Electronics
Amazon.com : Pentax SMC FA 50mm f/1.4 : Camera Lenses : Electronics
50mm F1.4 Full Frame High Speed – Samyang US
Pentax LX kit w/ 50mm 1.4 lens and 28mm 3.5 shift lens, Power Winder, – Film Supply Club