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The adapter fits between the camera and the lens, making it possible to mate an M42 lens to a body with a different lens mount. M42 adapters work best on bodies with a flange depth less than or equal to the M42's flange depth, which includes the popular Canon EF-mount, the Pentax K-mount, the Minolta/Konica Minolta/Sony A-mount, the Sony E ...
Five lenses have been released for the Pentax Q. A sixth lens and an adapter were announced in September, 2012. Pentax 01 Standard Prime (2011) — 47 mm equivalent; Pentax 02 Standard Zoom (2011) — 28–80 mm equivalent; Pentax 03 Fisheye (2011) — 17.5 mm equivalent; Pentax 04 Toy Lens Wide (2011) — 35 mm equivalent
The T-mount is a standard lens mount for cameras and other optical assemblies. The usual T-mount is a screw mount using a male 42×0.75 (42 mm diameter, 0.75 mm thread pitch) metric thread on the lens with a flange focal distance of 55 mm and a mating female 42mm thread on a camera adapter or other optical component.
As with other Pentax DSLRs, the *ist DS uses the Pentax KAF bayonet mount and can use older lenses using the KA-mount without limitations. Original K mount lenses and, with adapter also M42 screw-mount lenses, can be used in manual mode by selecting a menu option. Centre-weighted metering, aperture priority and focus indication are maintained ...
The short flange focal distance of the Pentax Q series enables lenses from many manufacturers to be adapted to it, including Olympus OM, Canon FD, Minolta, M42 screw mount, M39 Leica, C-Mount, D-Mount, Pentax K, and Pentax 6×7. [7] A Pentax adapter with a synchronized shutter for Pentax K-mount lenses was released in October 2012. [8]
The Miranda cameras were equipped with a double lensmount consisting of a wide 44mm internal thread and an external bayonet—the Pentax/Praktica screw mount is 42mm. The flange to film plane distance was deliberately made as short as possible to accommodate as many different makes of camera lenses as possible using separately-sold lens adapters.