Last week we ran some tests of my MO-1925 emulsion 35 mm film through a vintage Eyemo cine camera. These were shot at 8 fps by hand cranking. Developed in 1929 Borax MQ developer formula (Eastman D-76)
Don`t get me wrong, i am really impressed by your work, knowledge and skill - way beyond of what i ever will be capable of - and i also am impressed that you`re "staying in the timeline" - as you`re making film of the 20s using developer of the 20s and cameras of the 20s - , but because of this i cannot tolerate this Eyemo :
It is a rather unimportant aspect to most, but Eyemos aren`t hand-crank-cameras. Eyemos were spring-drive-cameras right from the start - which is why they were advertised as "automatic" cameras, because when the Eyemo came about in 1926(?) there still were some cameras which only could be hand-cranked. A spring-drive camera was something "automatic" back then as it runs "automatic".
Here the crank is attached to the shaft you wind the spring with. This works, if you unwind the spring the camera will stop and if you then start to re-wind the spring while the release button is pushed the camera will run - but you`re not really cranking the camera, you`re winding the spring to make her run.
To make an Eyemo a true hand-crank-camera you had to disassemble everything, take out the spring (which was very, very dangerous) and put her back together, maybe modified a little.
Then there is a Super-Takumar attached to the Eyemo, which is a very good lens, but it`s from the 70s or 80s, single coated at least and maybe even having some rare-earth-lens elements... a lens being (a lot) better than lenses they had in the 20s.
If you wanted to stay in the timeline but have a hand-crank-camera you should use something else, like a DeVry Standard A for example, with original lens. This also is a spring-drive-camera but it has an additional shaft for cranking - enabling the operator to shoot an entire roll of film without pause.
DeVrys are more rare than Eyemos, but they aren`t as rare as wooden, hand-crank-only cameras, not as big, not as heavy and not as expensive.