Mostly excellent full metal build quality, except the filter holding part itself is plastic. Very good design and very simple to use. Fast to put on and off (quick release is awesome). I have faith in the build quality, though. I will update this review if it breaks.
31/03/2020
Just received this so haven't been out and tried it yet but I've compared it's colour tone to a (much more expensive) Kase 150mm filter which makes me believe it'll be fine. It's packaged really well and has a brown leather-style pouch to store the filter which actually fits quite nicely into my Lowepro filter pouch - I think I'll keep it in that even in the pouch, not only to protect it but I'll be easily able to spot it in the dark! This glass filter fits perfectly in both my Nisi and Lee holder systems so I've given it five stars for the build quality and the fact it looks like it'll do what I need. I'll adjust this review if I discover otherwise when I've taken the first batch of photos with it.
01/08/2019