Filca won't work in an M
No more "crooked" negatives!
When the early Leicas were designed, there was no standard for the length of a 135 film cartridge. So Leitz made their own cartridges (the FILCA), and designed the camera to work with those. Contax did the same with their cameras, and I believe others, too. Everyone eventually settled on Kodak's cartridge size, since they were the market leader, but this is slightly shorter than what Leitz had. So Kodak cartridges aren't "full-size" for the Barnack cameras, and they can slide downward as you shoot, meaning that the film is traveling across the shutter gate at a slight angle. Sometimes, the image can extend down on the the sprocket holes.Can you explain what you mean? Thanks!
When the early Leicas were designed, there was no standard for the length of a 135 film cartridge. So Leitz made their own cartridges (the FILCA), and designed the camera to work with those. Contax did the same with their cameras, and I believe others, too. Everyone eventually settled on Kodak's cartridge size, since they were the market leader, but this is slightly shorter than what Leitz had. So Kodak cartridges aren't "full-size" for the Barnack cameras, and they can slide downward as you shoot, meaning that the film is traveling across the shutter gate at a slight angle. Sometimes, the image can extend down on the the sprocket holes.
Here's an image I found on the web: View attachment 387895
Some just ignore this. Others can be bothered by it. Solutions include a small shim or washer in the baseplate to keep the film cartridge high, or...use the cartridges the camera was made for...the FILCA.
I've never heard of any issues with focus because of the cartridge. It sounds like something else might be at fault, maybe something not quite square with regard to film gate and lens mount?That is an excellent explanation. Could the slipping film cartridge explain why some of my IIIC frames are out of focus or fuzzy for maybe 2mm on the right side? This would be the left side in the film gate (near the film cartridge). Could the film be buckled a bit?
Could the slipping film cartridge explain why some of my IIIC frames are out of focus or fuzzy for maybe 2mm on the right side?
I've never heard of any issues with focus because of the cartridge. It sounds like something else might be at fault, maybe something not quite square with regard to film gate and lens mount?
No, the slippage is from the slight differences in "standard" Kodak cassettes and the "taller" Leica, no other reason.
Placing a strong compression cone shaped spring beneath the cassettes will force the cassettes to be pushed up and stay in place, no worries.
Flashlights are your best source for finding these springs, most days, so spend some money in junk shops, at yard and sidewalk sales and you should be good to go.
The spring in the IIIc I had sort of hooked itself onto the baseplate, the perfect location for loading and unloading cassettes, a semi permanent position where I seldom had to be concerned about loosing it in the middle of a film change.
I think old "C" sized battery, silver finish metal flashlights, from the sixties and seventy's, are the best general flashlight to work in the IIIc, etc.
Whether or no you decide to restore the black finish and making sure you have the right sort of felt, trimmed and in place in the cassettes should be the only questions left, all said and done, IMO.
I have kept my cassettes from when I owned my IIIc, hopefully to be put in place on a future, Barnack or "M" and would buy yours but that will be putting the horse in front of the carriage.
Good Luck and Cheers,
Eli
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