Graflex RH/20
A roll film holder back
Overview
The Graflex RH/20 is a roll film holder back made for use with Graflok-equipped cameras. Designed to fit "baby Graflok" 2×3 or 6×9 cameras, it attaches securely to the camera back via the Graflok system. Some versions feature a yellow color-coded handle, distinguishing them from other models in the RH series. The unit allows for 20 exposures per roll and includes either a knob or lever film advance mechanism, depending on the variant.
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. It features either a knob-style or lever-style film advance mechanism, indicating possible production variants. The color-coded handle—yellow on certain units—helps identify this model visually among similar roll film backs.
Context
The Graflex RH/20 is part of a family of roll film holders that includes the RH-10 and RH-50 models. It was produced during a period when Graflex supported medium format roll film accessories for press and field cameras, though exact production dates are not documented. Forum reports suggest manufacturing ended approximately thirty to forty years prior to 2022.
Market
"Crunchy gears" are a known mechanical issue reported by users, indicating potential wear in the film transport mechanism. "RH20 shell bumps" have also been referenced, suggesting structural or cosmetic damage can occur over time. Repair services are sought after, though documented fixes are not available.
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