No było przecież:
Fredrixxon pisze: ↑02 wrz 2025, 08:17 Należy zrobić dziurkę do "zachwytu", lub tak , jak ja utrudniam sobie życie - dokleić perforowany lider.
Agfa APX 100 (z rombem, 135) 30,5 metra, ale... bez perforacji
Moderatorzy: rbit9n, Jerzy, zladygin, Michał Kowalski
Agfa APX 100 (z rombem, 135) 30,5 metra, ale... bez perforacji
Agfa APX 100 (z rombem, 135) 30,5 metra, ale... bez perforacji
aka, aaa, no to mi umknęło.
M7 + 4,5/50 + 4/80 + 4,5/150
"Mędrzec uczy się nawet od głupca, głupiec nie uczy się wcale"
"Mędrzec uczy się nawet od głupca, głupiec nie uczy się wcale"
Agfa APX 100 (z rombem, 135) 30,5 metra, ale... bez perforacji
To jestem w stanie sobie założyć, ale... W jaki sposób on powtarzalnie mierzy ten przesuw (na różnych filmach) i dlaczego fotocela podczerwona nie zaświetla filmu (w obrębie perforacji)? Ten drugi temat być może tłumaczy zjawisko Schwarzschild'a przy małych dawkach światła, ale to tylko kolejna moja mętna hipoteza.
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Łatwe nie cieszy
Łatwe nie cieszy
Agfa APX 100 (z rombem, 135) 30,5 metra, ale... bez perforacji
Using non-perforated (unperforated) 35mm film in a Canon EOS 100 (known as the Elan in North America) works primarily because the camera utilizes an optical, infrared sensor-based transport system rather than traditional sprocket gears to determine film advance. While many 90s motorized cameras require sprocket holes to detect movement, the EOS 100’s "whisper quiet" belt-driven mechanism can be adapted to handle unperforated stock.
Here is how the system works and how to set it up:
How it Works
Sprocketless Transport: The EOS 100 uses a silent, belt-drive motor to move the film, which does not rely on teeth engaging in perforations.
Infrared Sensors: Instead of reading holes, the camera often measures the change in the diameter of the take-up spool, or in some cases, can be fooled into ignoring the lack of holes, allowing it to advance the film without stopping.
Load and Go: The camera can load unperforated film directly, although it may struggle to recognize the film edge, requiring a slight modification at the start.
How to Use Non-Perforated Film in an EOS 100
Initial Loading: Place the canister in the chamber.
Ensure Take-up: The camera's take-up spool needs to grab the film. While some reports suggest it works directly, it is highly recommended to tape the film leader to the take-up spool to guarantee it grabs.
Frame Spacing: Because the camera cannot rely on "seeing" the standard holes to stop at the exact frame interval, spacing between shots might be uneven or slightly overlap.
Rewinding: The camera should be able to automatically rewind the film at the end of the roll, but because it is not pulling against sprocket holes, you should listen to ensure it completes the process.
Important Considerations
Unperforated Specifics: Ensure the film is 35mm wide. The lack of perforations means you will get a slightly larger negative area, effectively up to the very edge of the film.
Alternative Method (Punching): Some users report success by manually punching a single hole in the leader of the unperforated film to trick the camera's sensor into thinking the film has begun, after which the friction drive takes over.
Darkroom Needed: Non-perforated film is often sold in bulk for special industrial purposes or specialized photography, and loading it into canisters usually requires a darkroom or changing bag.
Note: The Canon EOS 100 is one of the few 90s-era SLRs that allows this, similar to the EOS 10S/10QD.
Here is how the system works and how to set it up:
How it Works
Sprocketless Transport: The EOS 100 uses a silent, belt-drive motor to move the film, which does not rely on teeth engaging in perforations.
Infrared Sensors: Instead of reading holes, the camera often measures the change in the diameter of the take-up spool, or in some cases, can be fooled into ignoring the lack of holes, allowing it to advance the film without stopping.
Load and Go: The camera can load unperforated film directly, although it may struggle to recognize the film edge, requiring a slight modification at the start.
How to Use Non-Perforated Film in an EOS 100
Initial Loading: Place the canister in the chamber.
Ensure Take-up: The camera's take-up spool needs to grab the film. While some reports suggest it works directly, it is highly recommended to tape the film leader to the take-up spool to guarantee it grabs.
Frame Spacing: Because the camera cannot rely on "seeing" the standard holes to stop at the exact frame interval, spacing between shots might be uneven or slightly overlap.
Rewinding: The camera should be able to automatically rewind the film at the end of the roll, but because it is not pulling against sprocket holes, you should listen to ensure it completes the process.
Important Considerations
Unperforated Specifics: Ensure the film is 35mm wide. The lack of perforations means you will get a slightly larger negative area, effectively up to the very edge of the film.
Alternative Method (Punching): Some users report success by manually punching a single hole in the leader of the unperforated film to trick the camera's sensor into thinking the film has begun, after which the friction drive takes over.
Darkroom Needed: Non-perforated film is often sold in bulk for special industrial purposes or specialized photography, and loading it into canisters usually requires a darkroom or changing bag.
Note: The Canon EOS 100 is one of the few 90s-era SLRs that allows this, similar to the EOS 10S/10QD.
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lity bromoleje czarne białe i takie inne ...
lity bromoleje czarne białe i takie inne ...
Agfa APX 100 (z rombem, 135) 30,5 metra, ale... bez perforacji
Pomiar to żaden problem i nie zależy od filmu - przesuwa się płasko taśma i tyle. A rozdzielczość takich czujników jest rzędu ułamków milimetra. Co do zaświetlania, no to już nie wiem, może zaświetla, może to daleka podczerwień.
O ile to jest to, bo ja tylko zgaduję.