Extreme resolution and freedom from color fringes

Illustration shows the Rodenstock Apo-Sironar digital HR 60 mm f/4 in Copal shutter

Large format digital camera lenses at Phootos.com
FAQ
Serious digital photography needs the best possible optical quality lenses if it is to be successful.

High quality scanning and chip backs can only produce optimal results if the taking lens is especially designed for digital work.

Both Schneider & Rodenstock have now produced ultra high resolution lenses for use with digital camera systems. These new designs guarantee best possible image quality from digital cameras. We can supply digital lenses in Copal or Copal Press mechanical shutters or in Horseman, Rollei or Schneider electronic shutters.

Contact us here if you need advice in choosing the best lens/shutter combination for your application.

Unlike traditional lenses designed for use with large format film, high resolution digital lenses should not be stopped down further than f/8 to avoid diffraction blur.

Depth of field can best be influenced by using the camera movements on a DSLR Hybrid camera, a View Camera Converter (VCC) or technical camera in accordance with the Scheimpflug law.

The Rodenstock HR Apo-Sironar lens series illustrates the differences between traditional analog & new digital lens designs.

The HR series of three lenses was developed for special applications with extremely high resolution CCD chip backs with pixel sizes smaller than 10m. These lenses use every technology possible to get as close as possible to the absolute limit of diffraction determined resolution, and even take into account the effect of the protective glass layer used on the CCD sensor surface.  Extra space has been created between the CCD surface and the rear of the HR lenses by utilizing a 'reversed' telephoto construction.  This larger back focus distance allows sufficient room to use camera movements with wide angle lenses.  An image circle of 70mm diameter at f/8 means that the lenses can be used with chip and scanning backs using 24x36 mm, 30x30mm and 36x36mm sized arrays and still allow for a large amount of camera movements.

You can download Rodenstock lens information here & Schneider information here
Schneider image circle information is here


Lens Specifications :
Focal length & relative aperture Maximum format Image angle Image circle diameter Shutter size Filter thread Rear lens barrel diameter Overall length
35 mm f/4 37x49 mm 90 70 mm 0 / 01 S M 67x0,75 48 mm 80,4 mm
60 mm f/4 37x49 mm 60 70 mm 0 / 01 S M 49x0,75 42 mm 57,6 mm
100 mm f/4 37x49 mm 39 70 mm 0 / 01 S M 58x0,75 42 mm 73,4 mm
Rodenstock Apo-Sironar digital HR

35 mm f/4,5 46x56 mm 111 105 mm 0 / 01 S M 67x0,75 60 mm 58,8 mm
45 mm f/4,5 72x96 mm 107 125 mm 0 / 01 S M 67x0,75 60 mm 70,5 mm
55 mm f/4,5 72x96 mm 95 125 mm 0 / 01 S M 67x0,75 60 mm 73,8 mm
90 mm f/4,5 72x96 mm 70 125 mm 0 / 01 S M 67x0,75 60 mm 82,0 mm
105 mm f/4,5 72x96 mm 62 125 mm 0 / 01 S M 49x0,75 31,5 mm 48,6 mm
135 mm f/4,5 72x96 mm 58 150 mm 0 / 01 S M 49x0,75 48 mm 53,6 mm
150 mm f/4,5 72x96 mm 53 150 mm 0 / 01 S M 49x0,75 51 mm 57,4 mm
180 mm f/4,5 72x96 mm 45 150 mm 1 M 67x0,75 60 mm 65,2 mm
Rodenstock Apo-Sironar digital

120 mm f/5,6 72x96 mm 55 - 24  150 mm 0 / 01 S M 49x0,75 40,5 mm 49,8 mm
Rodenstock Apo-Macro-Sironar digital

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Revised: November 05, 2006 .