Well, my adapter arrived in time for this weekend, and I had a chance to try it out at Pescadero State Beach. The first lens up was my 75-150 Series E.
Close up and mid range, the results were quite pleasing. At infinity, I am seeing a focus issue, and the images are less than sharp. I suspect this has to to do with focusing a tad past infinity, but since I have never used an adapter like this before, I do not yet know. Most likely user error .
My initial reaction to the ergonomics was that using it on the G1 felt a bit unwieldy, but that passed after a while. Lengthwise with the adapter, it seems a bit unbalanced.
I have included one 100% crop below. None of these are sharpened as I wanted to show them as is.