Brass Knob Part for Tangental Rack and Pinion Focusing System on Petzval Lens
USD 85.00 USD
Specifications
| Type | Lens |
| Model | Petzval |
With the larger brass part included it is 75mm long, while just the thin shaft is 55mm long. The shaft is 3mm wide, and gears themselves are 5.88mm around and each tooth is 6.2mm long. Do notice that one tooth in that gear is missing.
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