Hi Kernopelli
Thanks for your message. I did search for the reference given, but it's unfortunately a different filter from the one I need. Actually, dimensions are the same, but thread size is 1 1/8 on your reference, while I need a 7/8 (22mm ish).
Anyone with a M180HD who can provide me with a filter reference ?!! The only one I find with a 7/8 thread are shorter (135mm instead of 180mm, so lower filtering capacity...).