The Rodenstock 300mm f/5.6 Apo-Sironar-S Lens with Copal Shutter & Lensboard from Arca Swiss is optimized for medium and large format analog photography. It comes with a Copal shutter and lensboard for stepless mechanical action. Also, the lens produces a 448 mm image circle for formats up to 8 x 10" in size. This allows for large movements without a decrease in image quality.
The lens has an optimized working aperture between f/11-22, allowing a moderate amount of light for more control over your photograph. Additionally, this lens has ED glass elements for eliminating color fringes and minimizing distortion.
The Copal shutter is a stepless mechanical shutter that is manually cocked and is capable of X-Synchronization. It features a shutter speed up to 1 second and has a bulb setting. The lens also includes a lensboard for mounting to your view camera.