>> That is correct. I However, I've found that the A 2X-L and the T6-2X >> both work well on the Pentax M*/A* 300/4 twins.
> if the A* 300/4 is the same optical formula as the M* 300/4, neither L > extender can possibly attach. i have both L extenders and a couple of the > compatible lenses. you seem to mean the 2X-S instead. Indeed! Good grief! I ~should~ have said the A 2X-S !!! Sorry for the confusion. Thanks for the correction, Herb. Fred
