Formerly know as the HC3/70, this newer model has larger exit pupil for brighter viewing, high eye-point viewing.
Unreversed image magnified 3 times
90 degree sighting angle
Focusable ocular to plus or minus 5 diopters, rubber eyecup.
Not for use with 200 series cameras.
Adjustable diopter correction (-5 to +5).
"The RM-2 can be used with all Hasseblad camera models, but is not recommended with the 205FCC, 205TCC and 203FE, since the viewfinder retainer plate covers the camera's meter display."