Hi. Thanks, I'd already read that. However, the ratings are according to
# 1 Focusing Accuracy
# 2 Rangefinder & Viewfinder Brightness
# 3 Framelines
The MP / M7 with flare-fix comes first. The M3 comes second. So, since the M3 has a longer EBL (i.e. higher inherent accuracy) I suppose one can infer that the M7 must be brighter. It's not explicit though.
Also, I suppose that since the M3 is x 0.91 whilst the M7 is x 0.72 and the windows are the same size, then the M3's effective aperture is smaller.
Still, I was wondering whether anyone else has compared the two. My newly acquired M3 is significantly dimmer than the M7. It's clear though, no crackling or anything. Just a bit dimmer.
colin