I love this ND. It has no surprise artifacts and didn't melt my wallet.Arrived promptly and in good condition.I would recommend going with the biggest size you can use and use step rings unless you share gear.

Love love love this filter!!!

It's not the best glass, but it gets the job done especially if you're exporting in 1080p.

Very good product.

Did pretty well didn’t get too much if not any at all of cross banding.. used it on my 70-200 worked great especially for the price!

Excellent quality product

Using this on Sony 85mm 1.8 on Sony A6300 and it works brilliantly, great pictures and the build of the filter is good. No black cross when on the highest setting. Love it.

Handy for older manual film camera with max 1000 or 500/ sec shutter speed to meter in sunny daylight, lens wide open. Metering can be adjusted by turning the ND to meet the correct light exposure at a set shutter-speed and choice DOF (f-stop) combination. Wonderful tool for needle metered or LED array camera where you see the progress of exposure as you turn.Retractable Rubber hood is the best solution to attach a hood.Lens cap for a 67mm will be 72mm. I will assume 1 size larger.

If you shoot photo (or specifically video) outdoors in the sunlight, you NEED a variable ND filter.For video, if you're shooting 30 FPS, you need to keep your shutter speed at 1/60 (because of the 180 rule) for natural blur and smoothness. If you want a nice blurry background at f/2.8, even at ISO 100, there's a great chance your image will be horribly exposed. Your only options are to increase the shutter speed (and compromise the natural look with distracting "choppiness") or crank up to f/16, which will flatten your image and get rid of that blurry background you wanted!In comes the variable ND filter. When applied, like variable sunglasses, it allows how much light passes through, kind of like an intimidating bouncer at a night club. So just twist the ring on the filter and you can achieve your shot perfectly!With this specific filter, two small things bummed me out:1. The ring doesn't have actual stops, just continuous rotation so you can't really keep track of the specific amount of light you're letting in.2. When the filter is on my Tamron 28-75 2.8 lens, I can't put the lens cap on at the same time. Not a deal breaker, but annoying when you want to quickly take a picture or shoot some video.But for the price, it's hard to argue this isn't a great purchase.

I just bought the Sigma 16mm 1.4 however I wasn't able to take full advantage of lower fstop at 1.4, and I came across this 67mm ND filter on Amazon, and I can honestly say that this is exactly what I was looking for. it allowed me to get that smooth bokeh in bright sunlight. and this was the reason why I bought this lens. So if you own a Sigma 16mm 1.4 this is a must have ND filter, it fits perfectly on the lens and has an adjustable ring. Also, I loved the packaging! it comes with a case for the nd filter when you are not using it.