This is not what I understood previously. I tought DFA 50mm was indeed the same design as FA50 but that the DFA 100 was Tokina collaboration?
----- FA 50 F2.8 Macro: 8 elements, 7 groups. D FA 50 F2.8 Macro: 7 elements, 6 groups. And I believe Ken reported that the D FA 100 F2.8 Macro was Pentax's design. Joe -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net

