Rodenstock's 32mm f/4 HR Digaron-W Lens features a Copal 0 shutter and has been designed for the largest sensor formats (up to 36 x 56mm, 40 x 54mm and stitch formats up to 49 x 71mm), with an amazing 80 lp/mm resolution. This lens has an image circle of 90mm, and it presents a 35mm equivalent focal length of 20.6mm when used with a 40 x 54mm sensor, or 16.5mm equivalent when used for stitching with a sensor up to 49 x 71mm. The large back focal length of 22.3mm leaves plenty of room for shift-and-tilt movements (16mm V x 13mm H with a 40 x 54mm sensor) for perspective control and extended depth of field.
For shift-and-tilt movements, its large back focal length of 22.3 mm leaves free space between the rear mount and the sensor, without touching the sensor or the rear standard.
The long flange focal length of 69.2 mm allows focusing at infinity with all technical cameras with a flat lens board, 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. Therefore, the further fall-off in illumination, which is inevitable when using micro lens sensors, can be avoided.
Vignetting is eliminated at f/8.
The optical effect of the sensor cover glass has been taken into account in the optic calculation for eliminating its apherical and chromatic aberration, as well as its astigmatism.
The high tech multi-coating ensures ultimate transmission, excellent contrast and freedom from ghost and flare.
A new dedicated center filter with specially matched sloping absorption will be available for the HR Digaron-W 32mm f/4.