By the way, the Tokina AF 100mm f/2.8 AT-X Pro D macro uses a Pentax-patented optical formula, that of the F / FA / D FA 100mm f/2.8 Macro which wad licensed to Tokina (among several others) when the then independent and listed Pentax company struggled to survive.
The first incarnation, the smc Pentax-F 1:2.8 100mm Macro, dates back to 1987. The latest and still current one is the smc Pentax-D FA 1:2.8 100mm Macro WR.
The first incarnation, the smc Pentax-F 1:2.8 100mm Macro, dates back to 1987. The latest and still current one is the smc Pentax-D FA 1:2.8 100mm Macro WR.