Rodenstock Sironar Without Shutter 55mm Lens

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Category: Photography-Lenses-Large-Format-Lenses, rodenstock, Valuable Extra: Lens Valuable Extras Package


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The Rodenstock 55mm f/4.5 Apo-Sironar digital Lens is a wide angle large format lens specifically designed for use with 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 maximum image area of 72 x 96mm, capturing a view similar to that of a 20mm lens on a 35mm format camera. This Apo-Sironar digital 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 Apo-Sironar digital 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 Apo-Sironar digital, you can use digital backs with a pixel pitch as small as 5µ.

This lens is recommended for use at apertures of f/8-11; you should primarily use your camera's movements to control the depth of field.

Extreme high resolution lens specifically for digital backs as large as 72x96mm
Produces extremely fine, uniform 125mm image circle
Wide angle view with 95° coverage
Apochromatic design to eliminate color fringing
Ideal working aperture range of f/8-11
Accepts 67mm threaded filters
Rear barrel diameter of 60mm
Without Shutter
Focal Length 55 mm
Aperture Range f/4.5 - 22
Covering Power 95°
Image Circle 125 mm @ f/11
Filter Thread Front: 67 mm
Overall Length 2.91" (73.8  mm)
Dimensions (DxL) Approx. 2.76 x 2.91" (70 x 73.8 mm)
Weight 14.11 oz (400 g)
 

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