Bill, I bought a CQ FD adaptor that arrived late yesterday. I am assuming it is basically the same as the Rayqual. I only tried it wide open last evening but today I find that I'm sure that it is not stopping down. I've tried it with an FD 50 f/1.8 and a 24 f/2.8. I mounted them back on an AE1 and can see the blades stopped down on it when I change the aperture. I cannot see that on the G1. I was unable to mount the lens with it set to A however.
Now--with playing around with both lens, if I initially set it in "A", try to mount (but don't force it)--it evidently does something to the lever--and then when I mount normally with it on aperture settings, it will work normally. Not every time--but several times. With the 50 f/1.8--I tried that trick--and it didn't work, but I found by watching the blades that if I don't completely mount the lens, the aperture works as its supposed to work. Def. not the solution, but it does indicate that something about the adaptor is keeping it from stopping down.
I just noticed when I took the 24 f/2.8 lens off (when it was working correctly on the G1) that there is a 'click' as I take it off-not the dismount click but probably the lever. I'm totally not mechanical so am not sure what is happening.
Hmm--in fiddling with it more--if I am careful to place the lever on the 'right' side--and then mounting, both lenses will work correctly. It seems rather strange--since you have to make an effort to both make sure the lever is on the right side--nearest you--of the pin and then twist just a bit to mount correctly, but this now works for me each time. Without being able to say what's happening, the trick appears to be getting the lever to connect correctly with the pin that is at the bottom of the adaptor.
I'm obviously sitting here working with the adaptor/lens as I type--so this is rather just a stream of my observations as they happen LOL.
I suspect that I'm not describing what I'm doing well--but suggest you look at the pin and lever as they connect and then twist the lens clockwise to mount and see what happens.
Addendum:---is the pin not placed correctly?? I have to make an effort to get the lever and pin in contact and you can hear a small 'ping'--then twist the lens awkwardly to get it placed-almost doing a bit of counter clockwise before twisting it clockwise. Its not intuitive, that's for sure.
Diane