We've got two Vivitar A macro TCs here; the one I use typically gets slapped on a Kiron 105 macro or a K 135 to give me a cheap long macro lens. Works well enough that I no longer feel the need for an expensive 200 macro.
Pentax, AFAIK, did not make a TC with variable extension. Pentax DID make a variable extension tube, though, and you can still buy it (as well as both tube sets, the 50mm tube, and the 100mm tube) from B&H.
-Lon
Don Sanderson wrote:
I don't believe Pentax ever did. I own 2 of the Vivitars, 1 M and 1 A version. I'm quite pleased with both, before I owned true macro lenses one of the Vivitars and an A 50/1.4 made a very nice 100mm F2.8 macro.
Don
