With XUME Quick Release Adapters, filters mount instantly in any orientation. Nothing to align, no moving parts and completely safe to use. The XUME Adapters will not harm your camera or lens, nor affect focus mechanisms, media cards, drivers or other electronics.
I shoot video with a GX85 with a Panasonic 8-18mm (MFT) [16-36mm FF] that has a 67mm thread and use a brass step-up ring to avoid vignetting with a Freewell 77mm VND and the Xume adapters. No issues for video (both 1080p & 4K) , but it does vignette with photos (4:3), but I would think photographers would rather use fix NDs which would be thinner than most VNDs, in general.
These things aren't cheap but man the convenience they add to a camera is astounding. I do a lot of wedding videography where moving between indoor lighting and outdoor direct sunlight happens 100x on the day of filming. The Xume system is invaluable to me. When these are coupled with a high quality variable ND filter, it's so easy to quickly adapt to lighting changes and allows me to easily use one expensive filter on various cameras. Lots cheaper than buying a filter for each camera or lens. Highly recommend this system.
First off, the built quality isn't very good, the adapter is made of aluminium and plastic, on the plastic piece you will notice extra plastic finishing from the moulding process (something you won't be expecting to see in even the cheapest toys nowadays). Though it doesn't affect using the Xume adaptor itself, but seeing it on a Manfrotto product is kinda disappointing.
This product has been around for several years, from my best recollection. I've finally got around to trying it and can only say one word -- Wow! This is an excellent product and works, just as the company claims. I've bought enough for my two 77mm lenses. I'm going to purchase a unit for each of my lenses. It's a great investment.
These rings hold the matching ring/filter pretty well although with another unit I did drop a filter off the lens onto some rocks. Bad things happened. But it is very convenient to use especially to swap ND filters in once a composition has been finalized. btw these rings will add some vignetting corners to wide angle lenses like a 24-70.
Works great and the magnetic coupling is very strong and I don't imagine any situation that the filter would come off. But the lens cap doesn't fit very well on it and it does easily fall off.
This is a really nice filter and to be honest it would have worked great , but heres the issues I came across. The darker you go the more rough grain you get with this . I mean its really hard to get good shots with this when using this filter to its max. And thats really why I brought it for . I guess you get what you pay for .
It works well
Need this with filter holder and works as expected.