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My G45 has a stiff focus and i can focus it with a kipon adapter and on a contax camera but not with the techart/deo tech. Just like said above i need to pull it apart for some maintenance. I tried a while ago but the screws were on tight so i gave up. I took it out tonight on a tripod and took these images. They are SOOC jpegs and focused in the center. Wide open shows corner issues but almost gone by f/4 and perfect at f/8.
I actually saw someone who had mounted the Hologon on an A7S but if course there were only two sample photos and they themselves couldn't get to infinity because of a flawed adapter (adapter itself was too thick). If u could get a dumb adapter and prove the Hologon can work with silent shutter mode that definitely clears up some myths! I had the opportunity to use this Lens converted and on an M9 and no doubt the sharpness is there corner to corner.. I recently used one on my G1 too. If only..
It was a very fast test. Since half the picture was in focus and the rest atrocious, I looked at the adapter and saw that it was mounted nearer on one side than on the other, aka wasn't fitting perfectly, not resting flat on the adapter. I assumed that the problem could rest with the screw activating the focus system on the other lenses, because the 16mm doesn't have a hole for it, so the adapter isn't aligned correctly on the lens mount. A cheap adapter could be modified to take the screw out and then may be (may be) the lens would fit correctly on the mount. From what I've read : the shorter the lens, the more important the mounting precision is.
Thank you for your tests !
I use quite a number of adapters. I also use the 45G and 90G often but with Fotodiox and Metabones manual focus adapters. I have had flair problems like this with every adapter except the two Novoflex adapters I have. Even the Mirex Hassi to Nikon TS adapter is prone to flair. So I have taken to lining the insides of all of my adapters (except the Novoflex's) with black self-adhesive flocking. This is sold for people who build their own telescopes, and it is very reasonably priced when you consider how little it takes to do an adapter. They sell the stuff by the square foot. You might also find it in a craft supply store.
This is how mine works: I use AFS and have focus on the back button AF/MF and focus magnify on C1 (focus is disabled on shutter). If i AF and then press the magnify, I get the "not available" message. If I AF and then move the MF wheel, then I can press C1 and get the magnify. I can press the shutter and continue to magnify for the next shot, as long as I don't press AF. If I use AF to get close, then I need to touch that MF wheel before magnifying.
