The Pentax smc PENTAX-FA 50mm f/1.4 lens is listed as discontinued - Pentax & Ricoh Rumors
The Pentax smc 50mm f1.4 is a Love Letter to Nostalgia - The Phoblographer
Pentax HD-DA 16-50mm f/2.8 ED PLM AW Lens Available for Pre-Order - Camera News at Cameraegg
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