Question 1

What image circle does the Rodenstock HR Digaron-W 40mm f/4 produce?

Accepted Answer

The HR Digaron-W 40mm produces an 88mm image circle at f/4. That's large enough to cover medium-format digital sensors up to 36×56mm and still leave room for camera movements like rise, fall, and shift — useful for architecture and landscape work where you need to correct perspective without cropping.

Question 2

Is the Rodenstock HR Digaron-W 40mm compatible with the Cambo WDS as well as the WRS?

Accepted Answer

Yes. The Cambo WRS mount used on this lens is compatible with both the Cambo WRS and WDS technical camera bodies. The lens panel slots into the same receiver on both systems, so you can switch bodies without changing lenses.

Question 3

What shutter speeds does the Copal 0 shutter on this lens support?

Accepted Answer

The Copal 0 shutter covers speeds from 1/1000 s down to 1 second, plus B (Bulb) for longer time exposures. That range is well suited to tripod-based landscape and architectural shooting, and the leaf shutter design means you get flash sync at every speed — a big advantage over focal-plane shutters.

Question 4

What is the 35mm equivalent focal length of the 40mm Digaron on a medium-format sensor?

Accepted Answer

On a medium-format digital back with a sensor around 36×48mm to 36×56mm, a 40mm lens gives you roughly a 26–28mm full-frame equivalent field of view. That puts it firmly in medium-wide-angle territory — wide enough for interiors and landscapes, but not so extreme that straight lines distort aggressively at the edges.

Question 5

Are there alternative lenses to the Rodenstock 40mm Digaron in a Cambo mount?

Accepted Answer

The main alternatives in this focal length and mount category come from Schneider Kreuznach — specifically the Schneider Kreuznach LS 35mm and LS 28mm lenses adapted to Cambo panels. They're sometimes described as having a slightly different rendering character. For photographers who specifically prefer the Rodenstock optical formula, the HR Digaron-W series is the dedicated line for digital large-format work, and no direct like-for-like substitute exists within the Rodenstock lineup at exactly 40mm.

Question 6

Does the Cambo WRS mount support tilt and swing movements with this lens?

Accepted Answer

Tilt and swing are functions of the Cambo WRS body and lens panel, not of the lens itself. Certain Cambo lens panels include an integrated gear-driven tilt/swing mechanism offering up to 5 degrees of tilt up and down. Whether your specific panel includes that mechanism depends on which panel variant is included — check the listing details. The lens's 88mm image circle is large enough to support those movements without vignetting.

Question 7

Is buying a used Rodenstock HR Digaron-W worth it compared to buying new?

Accepted Answer

For a lens of this calibre — precision-engineered optics in a mechanical Copal shutter — the used market makes a lot of sense. The optical formula doesn't change with age, and the Copal 0 shutter is a well-proven mechanical unit that can be serviced if needed. Every second-hand lens on Camera-tweedehands.nl is individually inspected and photographed, and comes with a minimum 12 months warranty, so you're not taking a blind punt on condition.

Question 8

What filter size does the Rodenstock HR Digaron-W 40mm f/4 use?

Accepted Answer

The front filter thread is 67mm. That's a common size, so you'll find a wide range of polarisers, ND filters, and step-up rings readily available. A slip-on front cap measuring 70mm fits over the front element when no filter is attached.

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Rodenstock HR Digaron-W 40mm f/4 with Copal 0 Shutter - Cambo WRS Mount

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About the Rodenstock HR Digaron-W 40mm f/4 with Copal 0 Shutter - Cambo WRS Mount

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