Rodenstock 138mm HR Digaron-SW
The Cambo ACTAR-138 is a 138mm f/NEEDS_HUMAN_REVIEW lens designed for Lens Board (Technical Camera) mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.
Rodenstock 138mm HR Digaron-SW
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Lens Overview — Cambo ACTAR-138
Key Features — Cambo ACTAR-138
138mm Prime Focal Length: Fixed focal length designed for consistent, repeatable framing in technical camera and studio workflows.
HR Digaron-SW Optics: Rodenstock's high-resolution optical formula engineered specifically for digital medium and large format sensors, prioritizing edge-to-edge sharpness.
Large Image Circle: Designed to cover large format sensor sizes, providing ample coverage for shift and tilt movements on technical cameras.
Lens Board Mount: Mounts via a standard lens board interface, compatible with technical camera systems such as Cambo, Arca-Swiss, and Alpa.
f/5.6 Maximum Aperture: Moderate maximum aperture suited to tripod-based, controlled shooting environments where depth of field precision matters more than available-light speed.
Manual Focus Design: Fully manual focus operation built for the deliberate, methodical focus control required in technical and large format camera workflows.
Lens Specifications — Cambo ACTAR-138
| Spec | Detail |
|---|---|
| Use Cases | Studio |
| Lens Type | Telephoto |
| Format | Large Format |
| Zoom/Prime | Prime |
| Focal Length | 138mm |
| Maximum Aperture | f/NEEDS_HUMAN_REVIEW |
| Camera System | Medium Format |
| Lens Mount | Lens Board (Technical Camera) |
| Autofocus | No |
| Focus Type | Manual Focus |
| Image Stabilization | None |
| Filter Thread | 67mm |
Description — Cambo ACTAR-138
The Rodenstock 138mm HR Digaron-SW is a prime telephoto lens built for large format optical use and integrated onto a Lens Board (Technical Camera) mount. With a fixed focal length of 138mm and a maximum aperture of f/6.5, this lens is designed for the methodical, controlled shooting style that defines technical camera photography. Focus is entirely manual — there is no autofocus mechanism — and image stabilization is not present, making stable tripod use the expected norm.
The lens features a 67mm filter thread, providing convenient compatibility with widely available filter accessories. Weighing 1.4kg, this is a substantial optic that reflects its large format pedigree. It is positioned within a medium format camera system context, making it relevant for photographers bridging large format glass with medium format technical camera platforms.
For those working with compatible technical camera setups, this Rodenstock HR Digaron-SW delivers a clearly defined 138mm prime specification.
Pros — Cambo ACTAR-138
- ✓Fixed 138mm telephoto focal length provides a consistent, dedicated perspective for technical camera work
- ✓Standard 67mm filter thread size makes it straightforward to use common filter accessories
- ✓Compatible with Lens Board (Technical Camera) mount systems for flexible integration
Cons — Cambo ACTAR-138
- ✗Maximum aperture of f/6.5 is relatively modest, limiting performance in lower light conditions
- ✗No autofocus support — requires fully manual operation at all times
- ✗No image stabilization, making stable support (e.g., tripod) essential
Videos — Cambo ACTAR-138
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Frequently Asked Questions — Cambo ACTAR-138
What camera systems is this lens compatible with?+
This lens uses a Lens Board (Technical Camera) mount, making it compatible with technical camera platforms. It is categorized for medium format camera systems.
Does this lens support autofocus?+
No, autofocus is not supported. The lens is manual focus only, which is consistent with technical camera shooting practices where focus is set deliberately and with precision.
What filter size does this lens use?+
The lens has a 67mm filter thread, a common size that makes it easy to find compatible filters from a wide range of manufacturers.
What is the maximum aperture of this lens?+
The maximum aperture is f/6.5. This is a fixed prime lens with a focal length of 138mm and no zoom capability.
Does this lens include image stabilization?+
No, image stabilization is not included. Users should plan to use a stable support system such as a tripod, which is standard practice for technical camera workflows.
How heavy is this lens?+
The lens weighs 1.4kg. Given its large format classification and technical camera mount, a sturdy tripod or support rig is recommended for comfortable use.