Pentaflex (Tokiwa Seiki)

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The Pentaflex is a 35mm SLR camera made by Tokiwa Seiki in about 1955. It has a 5 cm f/3.5 Tokinon Anastigmat focusing to about 4 feet, and stopping down to f/16, which is interchangeable (though it is not clear what, if any, other lenses exist for the camera). The shutter is an MSK-Rapid with speeds 1-1/400 second, plus 'B', and is fitted behind the lens. It is a rim-set shutter, with the set speed visible in a window at the front. It is synchronised for flash, with a PC socket, but there is no flash shoe on the camera.

The body of the camera owes something to the Exakta, the front panels being angled, giving the camera a rounded shape in plan view. The viewfinder prism also resembles early Exakta ones (see the Exakta Varex, for example); a rather low, square pyramid. Even the engraving on the front of this (reading 'Pentaflex', with '24x35' underneath) in in the style of Exakta cameras.

Because of its lens shutter, the top plate of the camera is simple: it has a winding knob with a frame counter on the right, together with the shutter release rewind release button, and the rewind knob on the left. There is a tripod socket in the base.