Discussion Overview
The discussion revolves around the effects of shining a laser pointer on highly sensitive photographic film, specifically ASA 800, and whether the emitted photons would register on the film upon development. The scope includes theoretical considerations of film sensitivity and practical implications for photography.
Discussion Character
- Exploratory
- Debate/contested
- Technical explanation
Main Points Raised
- One participant questions whether a laser pointer would expose photographic film, suggesting that the photons emitted would indeed show up on the film when developed.
- Another participant asserts that any ISO of film would be exposed by light, emphasizing that it is simply light.
- A different viewpoint suggests that early orthochromatic films might not be exposed by red lasers, indicating a potential limitation based on film type.
- Concerns are raised about the sensitivity of standard film used in disposable cameras, with one participant expressing doubt about its ability to be exposed by laser light.
- Another participant argues that standard film is actually too sensitive and recommends using less sensitive black and white printing paper for better results.
- One participant challenges the assumption that film needs to be particularly sensitive to be affected by laser light, pointing out the brightness of lasers and their potential to cause overexposure.
- A further comment questions the understanding of color perception in relation to the use of red lasers, suggesting that color blindness could influence perceptions of sensitivity.
- It is noted that even relatively insensitive films require careful handling in dim light and complete darkness, reinforcing the idea that laser pointers are indeed bright sources of light.
Areas of Agreement / Disagreement
Participants express differing views on the sensitivity of standard photographic film to laser light, with no consensus reached on whether the film would be adequately exposed or the implications of such exposure.
Contextual Notes
Participants discuss the sensitivity of different types of film and the brightness of laser pointers, but there are unresolved assumptions regarding the specific characteristics of the film and the nature of exposure to laser light.