The product came in nice packaging and with a handy case that can store various filter sizes. The filter looks nice and doesn't glare. I took several photos that look wonderful. I haven't explored many lighting situations yet, but since my main reason for using the filter is to protect the lens, I'm happy.

I never found I needed ND filters of stills photography (I've had a few in my bag for years and never taken them out of their cases to actually use). That's not to say they couldn’t have been used for some shots, just that I've never really needed them for mine. However, when starting to get into video, I'd read that ND filters are a necessity when recording outdoors (especially in daylight)! There are some cheap ones available, as well as some very expensive ones - both fixed and variable density. I toyed with getting a set of fixed ones but thought I'd test the need with an ND, and one in the middle of the price range. I also opted of the magnetic mount as it seemed a useful alternative to having to screw it on.
I've found that ND filters really are needed for video (especially with a camera that works best set at "ISO400") and this one has done the job for me. Variable NDs can suffer from an X pattern at their densest setting - I've not needed to use this one at its darkest but it doesn't appear to suffer from that flaw (well, not noticeable to me). And the magnetic mount is great (a magnetic lens cap was dearer than I'd have liked, but worth it for the convenience).

The filter is good with no 'X' effect at maximum ND. It is larger than 67 at front to avoid vignetting on wide-angles so no attachment for more 67mm filters (eg CPL). They go behind. No lens cap either. It does have a dedicated, marked, rotation ring but the base must be secured with the supplied magnetic adapter as it contains raised portions to prevent rotation of the rear part of the VND filter. It fits other adapters but you have to set the ND value first really as its impossible to keep the base still. No problem if you know what you are doing ;-) but maybe problem for videography. No vignetting on my Sony 20mm f1.8 on an A7R3 so I am not sure what other reviewers are using.

Great filter! There are no vignettes anywhere. The magnet is strong and holds perfectly on my 67mm SmallRig adapter for the iPhone 13 Pro.
I think that some people have left the magnet adapter (which is included) on and are then surprised that the filter doesn't hold properly xD

Great filter! There's no sign of any vignetting anywhere. The magnet is strong and holds perfectly on my 67mm SmallRig adapter for the iPhone 13 Pro.

I think some people leave the included magnetic adapter on and are surprised that the filter doesn't stick properly xD

I have no complaints about these filters. I run them on all of my portable lenses that are carried. Flare resistance is very good thanks to the coatings, and it's rare that I have to make an adjustment in a shot due to flare. The only exception was when I was taking photos in a museum, pointing out objects near bright lights. But other than that, they clean up well and allow me to walk around without a lens cap for those spontaneous shots.

I bought this for a camera that is rarely used. It is still a valuable collector's piece that I want to keep in great condition and that means I had to protect the lens. I only have filters with the German Schott glass Zeiss "T" coating on cameras that I use a lot because I think they are the best multi-coated filters I can afford, but I can't spend the money on them on a camera that I rarely use. Any camera that is threaded to accept a filter deserves the protection that comes with a filter mounted in front of the actual camera lens. I'd rather risk damaging the AR coating on an easily replaceable filter than risk damaging the actual lens on any of my cameras through cleaning and exposure to dust or chemicals in the air. This brand of filter came neatly packaged and the filter holder that comes with the filter is well designed and provides excellent protection for the filter when it is not on the camera lens because I am using a different type of filter. This filter has multiple AR coatings on both sides of the filter and after comparing the results of identical images taken with the same camera with this filter and one of my prized and now unaffordable Zeiss "T" filters I can say that I see no difference in the results. I'm sure an optical lab could document some differences but in the real world I can't tell any difference when I compare test images I took with this filter and the Zeiss filters I used. This design works so well that I am slowly replacing the older non-Zeiss filters I have on my older lenses and cameras with these newer designs.

Excelente filtro de protección frontal para lentes. Entrega precisa y oportuna de Amazon: pedido el domingo por la noche, a la mañana siguiente a las 10 a.m. Ya pude montarlo en mi nueva lente (Fuji XF 56 1.2). para cerrar perfectamente ser muy fino - el borde moleteado permite un montaje y desmontaje rápido y preciso - no parece haber ninguna desviación de color significativa en las fotos de prueba - compré la versión de 62 mm. Este filtro lo mantendré prácticamente montado en el objetivo de por vida para protegerlo de golpes y golpes de frente

Fits my SEL100400GM while the lens hood is in place. Granted you'll have to install the magnetic ring first then the hood and then place the filter inside the hood but it does connect to the magnet and since this lens has a handy little slide door(wank wank) I can adjust the variable ND filter...lol..

I'd look to another review of your asking about quality. I'm happy but I'm just a amatuer... if not beginner.

Muy satisfecho con los resultados de las fotos