The IPS display is bright and contrasty enough for indoor and outdoor applications without direct sunlight. Color reproduction is sharp. Usability is good and easy to understand and the display modes (both lenses, front lens only, side lens only) are easy to set and always well marked on the screen. The function to rotate images on the screen is also handy. All in all, good and practical for our applications.

So far it's easy to use.

82mm used on Nikon 24-70 F2.8, now have the 77mm for 70-200 F2.8, may try a 52mm to see if it will fit a 300mm F2.8 drop in, allowed me to shoot the Lancaster on a bright day at F6.3 (sweet spot) iso64 at 1/6th second to obtain perfect full discsCracking filter fully recommend

I've been looking for a decent Variable ND Filter for some time now and stumbled across this one from K&F.Having recently purchased a new backpack from the brand and being impressed with the quality, I thought I'd treat myself to this filter. After all it claims to not have the dreaded X that almost all Variable ND Filters have.On first impressions the filter was packaged very well in a hard branded card box. Inside was a plastic clamshell style case, housing the filter safely in a foam material.Getting my hands on the filter, I was amazed with the built quality and overall feel for the price! It feels well put together and durable.Having only briefly tried it on the Canon 80D paired with the EF-S 17-55mm f2.8, there is a small amount of vignetting at 17mm. However this disappears as you zoom in. (The small amount of vignetting can easily be removed in post)Thanks to hard stops at ND8 and ND128 the filter doesn't cause that dreaded X.Pros:- Excellent value for money- Great build quality and usability- Minimal vignetting and colour cast- Nano X glass offers clarity, scratch resistance and waterproofingCons- Case could be sturdier (a metal tin and an insert to hold the filter snug when in the case would have been better)As stated above, my only disappointment is the case. It will keep the filter safe, however the filter does just sit inside on top of a piece of foam allowing it to slide around.All in all another quality product from K&F! I'm certain it won't be my last purchase from this brand!

This ND filter maintains the sharpness of the image to an acceptable level, in my humble opinion. There is some colour cast and vignetting, which can be adjusted in post, so it's not that big an issue. The build quality is decent, and it's very easy to clean.The ND8-ND128 is a good range that is suitable for most conditions, both for photography and videography. If you're trying to take long exposure shots in very bright sunlight, you will definitely need an ND filter with at least 10 stops (ND1000 or more).Overall, I'm satisfied with the purchase. It's definitely worth the money.

The focus of the side camera should be closer. I don't understand how the Barrel Groove demonstration video was viewed.