I measured the shutter.
It is good at all speed except the fastest that are a bit slow (which I guess nobody really uses much)
1/125 = 1/97
1/250 = 1/153
1/500 = 1/262
Field # ShenHao XPO45 - Monorail # Sinar F2 Multi format P&S 4x5, 6x12, 6x9 # Chamonix Saber6x6 # Minolta Autocord, 6x9 # Kodak Medalisthttp://www.lucbenacphoto.com/