NiSi Australia is also doing a similar frenzy deal. They are run by the same distributors Pixel One. Good time to stock up protector/UV, ND, CPL filters for travel! Also a great time to try out square filters for those landscape photographers. I have used their filters before and they appears to be of great quality. Very thin frame and apparently very good coating as well.
15% discount is applied at checkout and free delivery for orders over $49.