To be fair, the falling off may be the lens - I can't tell. Basically it seems like there just aren't enough threads engaging. I am using it on a refurbished (by Nikon) Nikon AF-S 55-300 1:4.5-5.6. I have NOT tried any other filter on the lens.I have the same filter in 52mm and have used it on 2 other lenses (18-55 and 55-200) and it seems to engage more than this bigger filter in the longer lens.As long as you get it seated and remember to twist the filter orientation in the direction of tightening the filter it's okay. I got it backwards and ended up unscrewing the filter (which only seems to be less than a full revolution - less that one full thread) and it fell into dry sand. It doesn't look like it got damaged but I just don't enjoy using it because of the high possibility it may fall off again.And, it's hard to get the threads started.Again, I haven't used any other filter on this lens so it could be the lens too, which is more of a question because the lens was refurbished (although the threads don't look bad or as though they'd been truncated somehow).As for the pictures, I used it to effectively remove glare from a water body. It seems to work fine (as does my 52mm which I've used a lot more). No complaints but I may not see differences between this and a B+W anyway. I can certainly see the difference between this and no filter. I'd buy one again. I think the Tiffen's are a great cross between results and price. When I start seeing artifacts maybe I'll spring for a B+W or other brand.

A good quality filter is a must for any lens. This filter definitely has the high-quality I was looking for.

Filter looks fine, however the Canon lens cap for the camcorder did not fit very well on the filter, so I will have to get another lens cap.

I love this filter. It does exactly what it's supposed to. It also protects the lens.

I bought this lens because of the 77mm front filter thread and close focus specification...the lens does focus close, but it really isn't acceptably sharp to me until the camera-subject distance is increased. At 14mm there is great disparity between what you see in the viewfinder (the .jpg's are beautiful), and what the raw image looks like. I would expect distortion from a 14mm rectilinear full frame lens, but with this lens, applying software lens correction to raw files is a MUST at the wide end, to fix distortion and remove extreme corner vignetting. The severeness of this is reduced by 16-18mm. To me, the lens doesn't feel as sharp as it could be at any focal length, but it's really only noticeable when pixel peeping...that surprised me as most other RF lenses are reported to be very sharp. Construction seems solid, IS and AF are fantastic on my R6 body. Overall. I have no complaints, but think this is a good, slightly quirky lens that would be a great lens at half the price.

Can't believe I got this for.99 cent!! It works perfectly and I love interacting with my Alexa!

I have been using this filter to protect my lens and it has done the job.

Have had my previous ones for.10 years so was afraid to.purchase. these are better than the first