Digital Leica M8 / M8.2 / M9 / M-E /Mono / M10 aka "M"Discussions about the Leica M8 /M 8.2 / M9 / M9-P/ M-E / M Monochrom / M10 aka "M": Leica digital M mount rangefinder cameras. Naming the new digital M the "Leica M" is VERY unfortunate as it will only confuse newbies with other Leica M cameras of the the past. Happily there is room for confusion with only the past 59 years of Leica M production ... since Leica introduced the Leica M system in 1953. All Hail for the Leica Marketing Department learning Leica M history!
The IR cut filters that work by interference, like B+W #486, cause the corners of the frame to have a cyan cast. This only happens with lenses with wider picture angle than 35mm for full frame cameras (if I remember correctly). Jorge's 15mm picture in this thread is an example: