This camera is same Pro8mm
Classic Pro, but with Max8 frame and crystal sync sound system.
Max8 is a new 8 mm format created from Super 8.
Pro8mm has enlarged the Super 8 frame on the sound track side. With this added
area, the new frame has not the 16:9 ratio, but, in the Pro8mm laboratory, the
image is cropped when the film is scanned. The camera has modified the film
gate and has two black lines in the reflex viewfinder to indicate the size of
the 16:9 image.
Note of instruction manual: "The Max8 modification pushes the optical
system in the Classic camera to its limits. To take full advantage of this
system you should remove all filters, even the step up adapter on the front of
the 8-64mm lens. If filters, adapters or other lenses are used there will be
vinyetting at certain focal lengths and F-stops in the Max8 frame. This can be
remedied in transfer but you will achieve less resolution". The solution is to
use a compendium.
This camera incorpores a internal quartz crystal sync
control for 24 or 25 fps. "The crystal
speed module is located below the eyepiece. It will govern the camera’s
running speed assuring a constant speed, allowing sound to be recorded on a
separate sound recorder. You may switch to variable speeds: 2 – 70 fps or sync
24 fps. When the camera is switched over to sync 24 fps the red light above
and to the right of the sync switch will flicker brightly and constantly. When
the camera is shooting at variable speeds the light will fade in and out and
the flickering of the light will not look constant." (Extract from instruction
manual).
Crystal sync version has not auto exposure control. It is
only available in semi-automatic mode. The camera has a pointer in the
viewfinder that indicates the correct diaphragm aperture.
Instruction manual
is available in Pro8mm web site,
here.