Graflex RH/20
A roll film holder back
Overview
The Graflex RH/20 is a roll film holder back for Graflok-equipped cameras. It fits "baby Graflok" 2×3 or 6×9 cameras and attaches to the camera back through the Graflok system. Some versions have a yellow color-coded handle, which sets them apart from other models in the RH series. It gives 20 exposures per roll. Depending on the variant, the film advance is either a knob or a lever.
Specifications
| Product type | 120 Roll Film Holder Back |
| Compatible with | 4x5 Graflok Graphic USA Vintage Camera |
| Format/Size | 6x7 rollfilm back |
| Film capacity | 20 exposures |
| Image size | 6×7 |
| Film size designation | 220 size |
| Color coding | Yellow (on some versions) |
Design
The RH/20 mounts to Graflok-compatible cameras, including baby Graflok 2×3 or 6×9 models. The film advance is either knob-style or lever-style, which points to production variants. The handle is color-coded yellow on certain units, and that is the quickest way to pick this model out from similar roll film backs.
Context
The Graflex RH/20 belongs to a family of roll film holders that includes the RH-10 and RH-50. It was made while Graflex still supported medium format roll film accessories for press and field cameras. Exact production dates are not documented. Forum reports suggest manufacturing ended approximately thirty to forty years prior to 2022.
Market
Users report "crunchy gears," which points to wear in the film transport mechanism. "RH20 shell bumps" have also been mentioned, suggesting structural or cosmetic damage can happen over time. Repair services are sought after, but no documented fixes are available.
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