C-Mount Fujian 35mm F1.7 CCTV lens on a GH5 (Review)
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- Опубліковано 14 жов 2024
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Sam delves into the world of adapting lenses on his mirrorless Lumix GH5. In this episode, Sam reviews the Fujian 35mm f1.7 lens with C-Mount to M43 adapter.
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I made a few modifications to the lens. First I took off the screw mount by loosening the three screws at the back and reassembled it in a position so that the scales for focus and aperture are in the upright position, when the lens is mounted to the camera. Then I opened the aperture all the way and put a mark on the adapter by scratching off the black color right at the position where the 1.7 number is. When you then turn the aperture ring, you can see to which number the aperture is closed. The third modification is inside the lens, when you set the focus to the nearest position then a silver colored tube is visible on the back which could make inner reflections inside the lens. To minimize this, I painted the tube with black matte color which is used in modelling and available in this tiny containers. The lens has a 35 mm filter thread and I bought also a lens hood for this. The hood has a front thread of 46 mm and on this I screwed a circular polarizing filter. With this modifcations the contrast of the lens is greatly improved by preserving all its character. The best results come out when the lens is stopped down a bit to approx. 4. But this is not a problem at all, because the character of the lens is not archived mainly by depth of field but by the really bad field curvature, which means that even stopped down it is never possible to get sharpness from edge to edge. That makes it a wonderful portrait lens and the bokeh swirls like crazy. When the flaring is too much it also helps to block the incoming light with a hand outside of the frame. Just experiment with it and have fun!
Can you help me, I purchased one but I don’t know if there’s something wrong with the c mount or lens itself. It works sometimes but not all the time, it says on the screen to check if the lens is attached even though it is. Is there a reason why it’s doing it? I have it on my Lumix GH1
I have one... I love it. I use a 37mm>55mm step-up ring for ND's. Check out the Tamron 4-12 mm 1.2 Aspherical. Did you have to do any work on the Cmount adapter to get the rear lens element closer to the sensor? Where are you located in England?
Aha, I'll get hold of a 37mm step up ring.
I didn't have any mounting issues as the adapter came with the lens, so it fit perfectly without any issues.
And I'm in southwest England
@@PhaseDriveVlogs I did a cruise out of Southhampton in June. Great pubs... great grubs. Love traditional English breakfasts. See-vimeo.com/277803285
got same lens, pretty sure . Its nice for price have not used it much tho. what other lenses you got?
The 25 f1.4 just got delivered, and I'm looking at a Sony 16mm f1.6 too. Also bought a load of vintage Pentax 35mm primes - gonna get a focal reducer for them.
Planning on doing videos for all of them.
@@PhaseDriveVlogs nice get viltrox ef-m2 for canon glass, good deal
the helios lens and this are my goto bokeh lenses lol