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This was the first model to offer a 6x4.5 cm frame, allowing 15 shots on a standard 120 roll film. The M645 was a true system camera , with interchangeable viewfinders and lenses. It used an electronically controlled cloth focal plane shutter offering speeds of 8 seconds to 1/500 second in one-stop increments.
The camera can shoot 16 exposures per 120 roll in 6x4.5 cm format or 12 exposures in 6x6 format. Film is advanced by a knob on the top of the camera, and frame numbers printed on the backing paper of the film can be viewed through a red window on the back of the Holga.
The camera has a 44×33 mm image sensor and the raw file is in DNG format. It is the first digital version of the company's 645 medium-format camera system and it is compatible with the existing 645 system lenses. [4] In early 2014, the first Medium format cameras with a CMOS sensor instead of a CCD sensor were introduced by Phase One and ...
Lightweight, electronically controlled, modular 6x7 cm medium-format SLR camera system with leaf shutter lenses, four interchangeable viewfinders, speed grip, and optional film-backs for Polaroid Land pack film, 6x4.5 cm, 6x6 cm, and 6x7 cm rollfilm. 120 and 220 size film-backs available in 6x4.5, 6x6 and 6x7 cm.
The Pentax 645 is a medium format single-lens reflex system camera manufactured by Pentax. It was introduced in 1984, along with a complementary line of lenses . It captures images nominally 6 cm × 4.5 cm on 120 , 220, and 70 mm film, though the actual size of the images is 56 mm × 41.5 mm.
The 645 format was introduced originally in the 1930s. The Mamiya 645 cameras could take 15 shots on a standard 120 roll film. The RB67 was followed by the more advanced RZ67 6x7cm frame format camera in 1982. These cameras established Mamiya as a major medium-format professional camera manufacturer, together with Hasselblad, Rollei, Bronica ...
The camera accepts 120 and 220 film, with interchangeable film backs configured for exposures of 6x7cm, 6x6cm, or 6x4.5 cm. Special-purpose film backs allow for motorized operation, 6x8cm exposures, use of 70mm film, or Polaroid film. [4]
The alternative Super series, denoted SnR, nR Plus or nR+, has an aspect ratio of 3∶2 (or as close as possible) and thus provides a better fit for standard 135 film (35 mm) at sizes of 8 inches or above. 5R is twice the size of a 2R print, 6R twice the size of a 4R print and S8R twice the size of 6R. 4D/6D is a newer size for most consumer ...