Tech tip1 min read
Ideal Lighting in a Microfilm Camera Room
Minimal overhead lighting gives planetary and rotary camera rooms uniform exposure, better productivity and fewer rejects.
The best lighting condition in a room with planetary and rotary cameras is minimal overhead light. In many service bureaus the cameras themselves are the only light source.
Highlights
- Uniform exposure: No extra light other than the exposure lamps falls on the planetary camera copyboard, and images are captured without hot spots
- Using extra light to reduce exposure and increase speed leads to uneven density along the roll
- Higher productivity: Subdued light allows film to be loaded and unloaded at the camera without going to the darkroom
- Subdued light is easier on the operator's eyes, increases productivity and reduces rejects
Source:Eastman Park Micrographics(epminc.com)(opens in a new tab)
Frequently asked questions
What is the best lighting condition for planetary and rotary microfilm camera rooms?
The best condition is minimal overhead light; in many service bureaus the cameras themselves are the only light source.
Why should no extra light fall on the planetary camera copyboard?
No extra light other than the exposure lamps should fall on the planetary camera copyboard so images are captured without hot spots; using extra light to reduce exposure and increase speed leads to uneven density along the roll.
Can film be loaded and unloaded at the camera without going to the darkroom under subdued light?
Yes, subdued light allows film to be loaded and unloaded at the camera without going to the darkroom.
How does subdued light affect the operator?
Subdued light is easier on the operator's eyes, increases productivity and reduces rejects.
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