multi-resistant coating technology significantly reducing lens flare and ghosting while making the filter anti-scratch, water repellent, oil & dust resistant fit for the rigors of adventure photography.
Feature ND1000 filter provides 10 f-stop reductions and is made with premium Germany Optics glass.
Primary color optical glass ND1000- double parabolic mirror
Glass mirrors with no double throw, especially those with longer focal length, are blurred.
Scratch Resistant The filter anti-scratch, water repellent, oil & dust resistant fit for the rigors of adventure photography.
Primary color glass coating Water droplets are round.
This is tough to beat. Not only do you get a 100mm GLASS (not plastic) 10-stop ND filter, but you also get the filter METAL mount and multiple METAL lens adapters. Even if you need to buy step-up/down adapters because the ones included do not fit your lenses, this is still a bargain. Even though this comes in at well below the price of other 100mm 10-stop filters (without the mounting system), it performs excellently.My unit doesn't produce any noticeable color cast, but I also shoot solely in RAW, so a color cast wouldn't be an issue anyway. The case for the filter is firm, so I don't worry about it very much when it's in my camera back, and the soft lining keeps the filter safe from scratches (so long as nothing coarse gets inside, of course). Better still, the filter mount features a second slot should you wish to use additional 100mm filters (e.g. graduated filters). I point out the size because this is the "standard" in these filters, rather than the more common 80-something mm ones you see in comparably-priced square ND filter bundles that use smaller, cheaper plastic filters instead.The only issue I found, and this is really just nitpicking at this point, is that the filter mount never really feels very securely attached to the lens. The filter and mount won't fall off if the camera is moved or tilted forward, but the mechanism that attaches the mount to the lens adapter could be a bit tighter fitting in my opinion. Nevertheless, great product at a great price. Anything "better" will be considerably more expensive, and even then, how much "better" will it be?
Not so good packaging but good apparent glass quality
The item packaging was not as good as i expected while the filter and the holder came in separate boxes the adapter rings were just strewn about in the bag, it was a good thing they were not damaged, i have yet to test the actual filter compared to my lee big stopper.
Having some experience with ND filters, I always worry about purple corners or dark spots. I took the set out today and got no strange colors. I love this set, it mounts nicely to my lenses with no fear of it falling off. The picture was taken at 11mm, 13 seconds shutter on my Canon 50D, I found K&F Concept when I wanted a good tripod which I found from them. Now if i need any accessories for my photography i look to them first.
If you are interested in getting into higher end filters and mounts this is a great buy. The mount itself is solid (deposit wishing the release was not a push button but rather pull to prevent field mishaps). This kits got me into ND filters which pushed my landscape photography to the next level.