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 #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 5µ.
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.
Focal Length | 100mm |
Maximum Aperture | f/4 |
Minimum Aperture | f/22 |
Image Circle | 70mm at f/11 |
Shutter Type | Copal #0 |
Filter Size | 58 mm (Front) |
Dimensions | ø: 2.36 x L: 2.89" / ø: 59.94 x L: 73.41 mm |
Weight | 13.05 oz / 370 g |
Warranty Length | Limited Lifetime Warranty |
Package Weight | 1.04 lb |
Box Dimensions (LxWxH) | 5.1 x 5 x 5" |