Term - Rack and pinion focusing |
| Rack and pinion focusing | SWPP Photographic Glossary | Wednesday 11th February 2026 |
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Rack and pinion focusingA mechanical focusing system used on copying or monorail cameras. A pinion engages a rack on a slide. Focusing is achieved by turning a knob or wheel, which moves the lens or image panel.
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Information provided by: SWPP |