Yes please :-) Amities Philippe > Le 7 mars 2019 à 11:46, John McMaster <john at mcmaster.co.uk> a écrit : > > Here is a thread about the CMOS Monochrom, filters and focus change > https://www.l-camera-forum.com/topic/268358-poor-results-with-filters-m246/ > > When weather is better and I have some time, I will dig out the filters and try a test... > > john