The Morse G-3 developer is a manually
operated rewind processing tank for Double-8, 16 and 35
mm. motion picture film. The G-3 requires a minumum of 32
ounces of solution for processing double 8 or 16 mm. For
35 mm. 64 ounces of solution is required. Film may be
processed complete through reversal to a positive image,
ready for projection, or. to a negative image from which
positive copies can be made.
Being an inexpensive mechanical
device, the G-3 must be hand turned. At the rate of two
turns per second, a 100 foot roll of film will pass from
one reel to the other in about one minute. This is not
critical, however, and the important feature to be
remembered in turning cranks is to prevent excessive
clinching of the film at the end of each pass.
1. Window (for re-exposure) should
face operator. Remove tank cover and reels.
2. Adjust top plate on both reels to
the proper width of film to be processed, either 16 mm.
or 35 mm. (double 8 is the same as 16 mm.)
3. Load light-sensitive films in total
darkness. Slower films may be loaded in safe-light. Place
film spool on the right hand spindle so that it will
unwind counter-clockwise. Place empty reel on left
4. In sert the end of the film in the
left-hand reel and clamp. To insure straight winding,
give the reel two turns clockwise, loosen clamp and
re-clamp. Make sure the end is securely clamped, however,
before continuing. Unwinding the film spool is the only
time that the two spindles revolve in opposite
directions. The loading is performed in this manner so
that the film will be wound emulsion side out.
(see figure 1)
5. Place cover in position and wind
the left hand crank clockwise until all the film is off
6. If using safe-light, continue in
total darkness from this point. Remove cover and the
empty film spool. Replace right-hand reel and insert
loose film end in reel and clamp.
7. Pass film over idler roll and give
right-hand reel two full turns. Loosen clamp and
retighten to assure in-line positioning of film. (see
8. Replace the tank cover. Make
certain cover snaps are in place and that re-exposure
window is to front and window cover closed.
9. With tank cover in place,
re-exposure window cover closed and facing operator,
remaining operations may be carried out in bright
10. Solutions are poured into the tank
through the opening on the top of tank cover. They are
emptied by pulling out rubber stopper, located in bottom
of tank beneath window cover. Both inlet and outlet are
light proof. Wind crank in the direction indicated on
tank cover, each crank has direction indicated by arrow
[The remainder of the
instructions are specific to film emulsions and chemical
formulae which are now out of date. I have therfore