gessman Loc: Colorado

Yes, I am aware. I have several such adapters mounted on FL, FD & Nikon lenses I use most often, yet relatively infrequently, like the FL55 f1.2, FD135 f2 & Micro Nikkor 55 f3.5, and others, all lens I have retained from prior use over the years, the seldom use of which the expense for AF versions can't be justified in my mind given all the circumstances I personally bring to the table, i.e., physical abilities, skills or lack thereof.

The thread you referenced is, as usual, excellent, both the birds and the narrative.

CHG_CANON Loc: the Windy City

Thank you. The FD 135 f/2 was one of my favorite and sharpest lenses. I used it a lot for butterflies at a local permanent exhibit. I was loath to give it up, but had to make some rationalizations back when I added the Sony for FD support so as to not have two fully parallel and incompatible systems. Things like the EF 24L was sold to keep the FD 24L and the FD 135 lost out to the EF 135L. Of late, I've been shooting film more than anything with EF lenses, followed by the FDs on the Sony. You might revisit the FD 135 and remind yourself why he's in the kit.

gessman Loc: Colorado

Thank you for expounding on this subject. The mc-11, I have heard, works better with some lens than others and the same with different bodies. I find that I see improvement with each later body model I've used it on. The a6000 is ok in good light with the three lens I used most often with it, the a6500 better, and the a7riii even better still.

As for the use of EF-s lens, I modified both the 10-18 and 18-135 with EF butt plates from ebay and both mount and are functional, quick to focus, on the a7riii full frame. The 10-18 doesn't vignette at 12mm or above. The 18-135 does vignette all the way but I can crop out the vignette from the 42 megapixel images and still have a nice image. Of course, both EF-s lens now mount with the mc-11 on the a6500 with no problem. Thanks again for your your time.

gessman Loc: Colorado

The 135 f2 is used more than any of the other older adapted lens I have. I bought it at a pawn shop about 25 years ago. It had been in a car wreck and ended up coated with mud and I got it, a 50 f1.4, and a Manfroto tripod plus some residual mud, all from that wreck, for $15. Without a doubt the best camera related purchase I've ever made. I left the pawn shop feeling a little guilty. Fortunately, all the mud was on the surface so I lucked out. I'd use it more but chasing critters like elk and moose I'm a little more comfortable with a little more lens between us.