Rodenstock 100mm f/4 Apo-Sironar Digital HR Lens for DSLR Cameras & Digital Backs

Rodenstock 100mm f/4 Apo-Sironar Digital HR Lens for DSLR Cameras & Digital Backs

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About Rodenstock

The Rodenstock 100mm f/4 Apo-Sironar digital HR Lens is a telephoto lens specifically designed for use with large format digital backs, which require a smaller image circle with extreme resolution, color correction and maximum performance at a large aperture. This lens is recommended for use with backs having a 33 x 44mm maximum image area and provides a view similar to that of a 79mm lens on a 35mm format camera. This HR Digaron-S is delivered in a standard type Copal no. 0 shutter.

In many cases, digital photography is superior to conventional photography if the desired end product is a printed image. To achieve this ideal, however, a much higher demand is made upon the image reproduction quality of the lens. This is because of a digital image chip's smaller area, which means finer details in a scene are squeezed into a smaller image recording area, as well as their sensitivity to color fringes.

But Rodenstock's digitally-specific lenses such as this HR Digaron-S provide image quality which allows the maximum capacity of a digital back to be realized. The lens utilizes every technological possibility to get as close as possible to the absolute limits of diffraction- determined resolution, even accounting for the properties and thickness of a CCD's protective glass. With the HR Digaron-S, you can use digital backs with a pixel pitch as small as 5u. This lens is recommended for use only at f/5.6; you should exclusively use your camera's movements to control the depth of field.

Rodenstock Features

  • Extreme high resolution lens specifically for digital backs as large as 33x44mm
  • Produces extremely fine, uniform 70mm image circle
  • Telephoto with 39deg. coverage
  • Apochromatic design to eliminate color fringing
  • Ideal working aperture of f/5.6
  • Accepts 58mm threaded filters
  • Rear barrel diameter of 42mm

Rodenstock Specifications

Focal Length
100 mm
Aperture Range
f/4.0 - 22
FOV on Format Diagonal
Image Circle
70 mm @ f/11
Copal No. 0
Filter Thread
Front: 58 mm
Overall Length
2.89" (73.4 mm)
Dimensions (D x L)
2.36 x 2.89" (60 x 73.4 mm)
13.05 oz (370 g)
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