There is no need to waste already packed 120 films by cutting it. You can order big (several hundred meters) roll of film in almost any width (e.g. from Foma Bohemia). There are guys who bulk load 120/220 films from such custom cut roll. This would lower the price of the basic material. As far as I know the price is approx.1/2 when comparing it with final packed 120 film then.
Don't the 126 cameras use a notch/sprocket hole in the film to engage the film stop?
Interesting, and your indexing is better than mine was. It looks nice and like you put a lot of work into it.
There are a few threads on this forum where we discuss reloading our own.
I think some people might prefer to be able to use 35mm reels as that would leave more options for development. Someone wanting a 126 cassette made for them may not be willing to take on modification of a reel, so they would be limited on what services could be accommodating.
My next experiment will be to use backing paper that isn't quite as high as the film, and only perforating the film. I'm not sure how much that risks light leaks. I found it too difficult to keep the paper and film indexing holes lined up, but I'm an amateur at this.
Fun project. I had a wind up motor winder Instamatic as a kid, pretty sure it would shred paper.
I visited Kodak Park in Rochester when I was 12 years old. I remember seeing a huge number of injection molding machines making cartridges, camera parts etc.
This is great information, thank you! Do you know if this is available in color negative format?
You might be able to 3D print an adjustable half for a Paterson-style reel. Personally I would develop myself, and have standardized on stainless, but a lot of people like the plastic reels.
I have my fathers Kodak Instamatic 414 & Grandmother's Minolta Autopak (500 I think). The 414 has the wind-up advance, but there is something shutter-related I need to fix (a molded plastic retaining "pin" for a spring broke). They are fun cameras.
I have to echo some of the above comments. I think if you are planning on going into commercial production (even small scale) 35mm wide film would be greatly advantageous. I would think that 31mm wide film would turn off some potential clients as it is not something that all commercial labs would be willing to develop, nor would those who home develop be willing to modify reels. Unperforated 35mm film is available, and if demand is high enough can be custom ordered or non-perforated 70mm film could be slit.
Could you elaborate on your backing paper situation? Is it also custom made or are you re-using old backing paper? Some backing papers did not have holes and instead had much longer slots which could create frame spacing issues if you are re-using.
No color film from Foma I am afraid. I have heard that Ilford was open to selling custom cut rolls but it required personal contact in the UK and those guys passed. But this is not helping with color either...
126 film is 35mm wide (as is 828). Any unperforated 35mm would work, sadly the only common 35mm unperforated still available is microfilm but it can be made to work. Now just dream up a punch that will do all 12-20 frames at a time and you are good to go.
One thing I did, which I don't think consumers would like, is not use backing paper. I glued a piece where it would be when the frame was exposed, just to keep the spacing and block the window, and simply kept track of my exposures with a sticky note.
There is no need to waste already packed 120 films by cutting it. You can order big (several hundred meters) roll of film in almost any width (e.g. from Foma Bohemia). There are guys who bulk load 120/220 films from such custom cut roll. This would lower the price of the basic material. As far as I know the price is approx.1/2 when comparing it with final packed 120 film then.
There was personal contact of one guy in Czech darkroom forum. He also advertised this option on FB but I couldn't find it now. I have sent him a message... Hope he answers soon.I'd love to find a source for bulk 120 film. Their website is not so helpful...know anyone that's done this?
There was personal contact of one guy in Czech darkroom forum. He also advertised this option on FB but I couldn't find it now. I have sent him a message... Hope he answers soon.
There was personal contact of one guy in Czech darkroom forum. He also advertised this option on FB but I couldn't find it now. I have sent him a message... Hope he answers soon.
The only micro film I have seen is incredibly low ISO, so low to make it impractical in an Instamatic camera. If there was an ~100 ISO microfilm that would be ideal but it might just make more sense at that point to cut down wide rolls of uncut film stock.
Pretty sure either Kodak or Fuji would be all too happy to cut you master roll quantities of unperfed 35 mm -- perhaps even pre-perf it with 28 mm spacing -- if you're willing to buy a whole master roll. Shouldn't cost any more than your house...
You can contact this guy via email oteccasu at seznam dot cz. He is eager to distribute more rolls!This is very helpful, thank you! Even a run of BW 126 film would be exciting. It would also be interesting to bring back even older roll film formats that I know are only available from FilmForClassics.
As a small update, unfortunately as I'm sure you all know many US universities, including mine, are operating at significantly reduced capacity due to the virus. I still have access to our design studio however everything is up in the air at the moment so I'm not sure how much progress I will be able to make in the coming weeks. I will be working with the prototypes I have to test backing papers and frame registration with a 35mm width.
I have also found on eBay a larger source of cold stored 70mm Portra 160NC which when cut into the lengths required for a 24 exposure roll of 126 would work out to less than $3 per roll. About 85 126 cartridges could be made from 1 100 ft roll. This may be the best path for the color film option.
No connections here I am quite sure.Is it the Svema guy in Ukraine? I wonder if he gets his film from Foma...
No connections here I am quite sure.
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