シュナイダーオプティクス/Schneider APO-DIGITAR 90mm f4.5 Lens in Schneider Electronic #0 Shutter 03-017780/レンズ/Lens/カメラ/camera/アクセサリー SRDG9045NSComparative Focal Length:90mm with 24x36mm sensor ~72mm with 6x4.5cm sensor Aperture Range:4.5 - 32 Angle of Coverage:53° @ f/11 Image Circle @ Infinity:90mm @ f/11 Shifts:29mm rise/fall 25mm left/right with 24x36mm sensor Shifts 29mm rise/fall 25mm left/right with 24x36mm sensor Dimensions:48.7mm x 80mm in Electronic 0 Shutter Weight:~1 lb (.45 kg)
・The six lens elements in four groups are constructed to focus light more directly on the image sensor ・It accepts all brands of 40.5mm screw-in filters ・Center Filters - neutral density in the center gradating to clear at the edges are recommended for ultra wide angle lenses (shorter than 47mm) or if large amounts of swings and tilts are to be used
Large format cameras and lenses designed for use with digital camera backs are the ultimate combination in digital photography. Although Photoshop can maneuver (interpolate) pixels to simulate some perspective shifts in doing so it diminishes the quality of the image. A view camera is still necessary for perspective shape and focus control.
Newer lenses for large format digital cameras are slightly smaller in size and shorter in focal length than lenses designed for 4x5 or 8x10 film. Digital sensor chips are usually smaller than their film format counterparts. Several 35mm Style Digital SLR's are an exception. The format conversion factor for a 4x5 lens for film to a 4x5 Digital Lens is 1.39. This is a 90mm f/4.5 lens in an Electronic #0 Shutter. Schneider APO-DIGITAR 90mm f4.5 Lens in Schneider Electronic #0 Shutter 03-017780