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| p.3 #7 · p.3 #7 · Finally a Fuji X100 wide angle solution that works |
This might be long winded, but hopfully might be of help to someone who is going to buy the Sony FE lens.
Well I got my Sony Fisheye in and I did a bunch of testing and photo taking to see what would produce the best results. The results were very good, but maybe not as sharp as the photo Millsart posted. I am guessing it could be a few things from I didn't get the spacing right, my copy of the x100 or FE lens are not quite as good, or I just need to take some more photos with different / better lighting and subject to compare.
When I got the FE lens I inserted the 52 to 49mm step-down ring into the back of the FE and taped it together and took a few photo on the tripod to get a baseline. Which looked good.
I then removed the screws, then the plastic insert, metal spring tensioner and the alum barrel.
I screwed the plastic insert back onto the FE body as that is what holds in alignment the step-down ring and then taped them together.
I then manually focused to 5ft as MIllsart suggested and starting with the ring tightened all the way down I took a photo. Each time I rotated the lens a half of turn I would take another photo. It took almost 3 turns to run out of threads. I tried to measure the max distance of travel and it was maybe .120 close to 3mm. The interesting thing is I noticed very little change in the sharpness of the photo from one extreme to the other. Millsart said his results were showing a big difference in sharpness on how it was spaced. At least within in these parameters I did not see much difference, with the closer / tighter setting, being a bit better.
So I screwed / tightened down the ring, and then took photos at different focusing points. 3', 5', 7' 9' 11' 30' Millsart was right on when he said 5', as 4 to 6' were the best and everything else was blurred. Not sure why 5' was the best even when taking photos at something a few hundred feet away.
Then with the camera manually focused to 5' and the ring tightened , I took photos at different F stops. This made a big difference...... F2 to F4 very soft / bad. F5.6 maybe 85%, and workable if you need the extra light. F8 was the best with F11 almost as good.
After all this I set the camera to F8, focused to 5ft, and with the ring tightened down and as close as I think you can even get the FE to the Camera, I took some photos. I then took everything apart and reinstalled the alum barrel on the FE and screwed the plastic insert to it and then the step-down ring a taped it together. The only difference should be the thickness of the flange on the alum barrel which is around .055. about 1.5 turns of the treads. Taking some more photos with this setup I did not see any difference In the end I only took the metal spring tensioner plate ( maybe .015 thick) out of the lens and used the thinnest step - down ring I had which was a Sonia brand.
I think I have exhausted all of the options in trying to get my FE lens setup to give as good of results as what Millsart got, so unless he replies with something I overlooked..... I will probable glue the step-down ring into the FE lens and go with that.