Kase Clip-in ND64 ND1.8 6 Stops Filter,Built-in Camera ND Filter Optical Glass for Sony Alpha Camera A7/A7 II/A7 III/A7R/A7R II/A7R III/A7R IV/A7S/A7S II/A7S III/A9/A9 II/FX3

No issues, works as it should. Got some wonderful 4k video!

Despues de instalado las fotos o videos quedan oscuros y todavia no he intendado en fiestas con laser.a ver con que suerte que no se dañe el sensor.

I am a long time KASE user and I have used Kase Filters on my drone hyperlapses and and on landscape photos, timelapses, hyperlapses and video. They are just so good. This one in particular allowed me to use it with lenses that are difficult to mount filters on. And sometimes I just don't have the right filter size with me so I put this on there and any lens can now have the advantages of an ND Filter. Just be careful when installing and when taking it out. There is a serious risk there so be really careful. But if you know what you are doing, this is a really great product. I use the regular filters whenever possible. I don't know, I probably am just used to doing it that way, and some filters are not just for ND, I use fx filters and cpl so I need to use those front filters anyway. But, I always have this clip-in ND on my camera bag just beside my memory cards, as backup ND for when I need it.

A little difficult to add/remove in the field, but nice neutral colour and 5-6 stops is accurate. I can shoot in full daylight with the sun in the frame plus my strobe at f/1.4 without issue.