Some of you may remember my yard sale Mamiya Super 23 and Metz 45 CT1. The Mamiya has been converted into a 500mm mirror lens. Although it says Quantaray, it's the Samyang Keppler mentions in the latest edition of Pop Photo. I haven't had a chance to do more that play with it in the yard yet, but seems to be pretty decent. There is a fair amount of fall off around the edges, but, condidering what it is, the colors and sharpness are pretty good. If I'm able to keep bright highlights out of the "bokeh" areas, the doughnuts are not visible.
I've been using it on the P30t, and discovered something interesting about it. Although the manual says a cable "switch" is necessary to use the cable release socket (mounted on the side of the lens mount), I've found that a standard, run of the mill cable release works just fine. I'm guessing that what happens is that when depressed, the circuit is completed just like a PC flash terminal. There's no "give", just depress the release and the shutter fires. Bill
