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Rodenstock 23mm f5.6 HR Digaron -S

Rodenstock 23mm f5.6 HR Digaron -S

From £6,154.80 Incl. VATFrom £5,129.00 Excl. VAT

Rodenstock 23mm f56 HR Digaron -S

The new Rodenstock HR Digaron-S 23 mm f/56 is the first super wide-angle lens providing a large image circle of 70 mm and a flange focal le…

SKU: 13831 Category:

Rodenstock 23mm f5.6 HR Digaron -S

The new Rodenstock HR Digaron-S 23 mm f/5.6 is the first super wide-angle lens providing a large image circle of 70 mm and a flange focal length and back focal  length allowing its use with nearly all types of technical cameras.
 Its optical construction has been optimized to meet the requirements of digital photography. An almost diffraction limited high resolution is achieved in the whole image area already for a full aperture. So sensors with a pixel pitch down to 6 µm  and a resolution up to approx. 60 megapixels can tap their full potential. Especially  photographers of (interior) architecture or landscapes, who had to use an analogue
 film for taking extreme image angles until now, will be highly impressed by this lens.
 The focal length of 23 mm for a 37×49 mm sensor corresponds to a focal length of  16 mm for a 24×36 mm sensor.
The back focal length of 16.5 mm is only 1 mm shorter compared to the HR Digaron-S  28 mm and leaves enough space between the rear mount and the sensor for swing -and-tilt movements without touching the sensor or rear standard.
The flange focal length of approx. 45 mm allows focusing at infinity with almost all technical camera models. On many of these cameras a flat lens board can be applied,  which makes it much easier to set the aperture and the shutter speed and permits the  use of the Rollei Electronic shutter.
The retro-focus design causes a steeper light incidence at the margin. So the further  fall-off in illumination, which is inevitable when using micro lens sensors, can be avoided.
No vignetting occures already for the full aperture f/5.6.
The optical effect of the sensor cover glass has been taken into account in the optic calculation for eliminating its spherical and chromatic aberration, as well as its  astigmatism.
The high tech multi-coating provides for ultimate transmission, excellent contrast  and freedom of ghost and flare.
Image Circle at infinity – 70mm @ f8 – covers 37x49mm sensor
This allows shift of up to 7mm vertically and 5mm horizontally on a 37x49mm sensor
Flange to focal distance at infinity – approx. 45mm in Copal shutter
Filter Size – 72mm
Weight – 750g in Copal shutter

Additional information




Large Format Lenses

Lens Focal Length

Lens Aperture

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