SMC Pentax-FA 100mm F/2.8 Macro Lens for K Mount #40770 C3 | eBay
Amazon.com : Pentax HD PENTAX-D FA Macro 100mm F2.8ED AW Macro Lens, dustproof, Weather-Resistant AW (All Weather) Construction, Black (20320) : Electronics
Pentax-D FA 100mm f/2.8 Macro WR Lens Review | ePHOTOzine
Ricoh Announces HD PENTAX-D FA MACRO 100mm F2.8ED AW Lens