Objective: f / 2.8 45mm Xenar or f / 1.9 50mm Xenon Shutter: Electronic Compur 20-1 / 500 film type: 126 cartridges Image size: 28 x 28 mm original list price (USD): 157 (black body only) 162 (chrome body only) 199 with f / 2.8 lens Lens 249 with f / 1.9 Although apparently was only in production for two years, this model was on sale until 1974. A relatively unique camera because there were few manufacturers who produce a camera SLR single lens for this format. The objective"" standard"" 45 mm, which is interchangeable with the Retina objectives of the"" S"" series, is equipped with a Compur electronic shutter dependent on the battery, which provides priority auto exposure opening, controlled by the CdS cell on the left of the pentaprism. This is unusual in the sense that it has its own mechanical iris that opens and closes as the lens is adjusted. The flash function is provided by both the flashcubes as a coaxial plug standard for electronic flash. Insert a flashcube automatically adjusts the shutter to 1 / 30segundo, and connect a flash gun adjusts to 1 / 300segundo. The f / 2.8 does not have the dynamic depth indicator field objectives'S series', although they work well in this chamber, but has a special locking for coupling the diaphragm to the focus for exposing the flash. Although the mirror is automatic return and the target stops automatically at the selected aperture when the photograph is taken is not re-open until it closes the shutter. This camera was also available 'one body' to those objectives'S series' from another camera. With the introduction of this model also it announced a Tele-Arton target 90 mm. It was produced specifically for this camera and has no dynamic indicators of the depth of field goals'S series'. In the same way, the 50mm lens shown lacks these indicators and has a filter thread 52 mm, much smaller than the 58 mm of the target"" S"" . The first camera, as shown on the right, equipped with f / 1.9 50 mm, had the accessory shoe 1969 was made available a completely black version. There was also a 28mm lens without the cap indicators and integrated'S the objective of the series' 28 mm. rubber cap screwed 29.5mm"" Instamatic Reflex"" is recommended for the purpose of the S series of 35 mm, and for the aims of 50 mm f / 2.8 and 90 mm, which have the possibility of mounting a bayonet socket, possibly because the lens cap rectangular for standard 35 mm lens, as used in the retinas, cause vignetting in this format. Tele-Xenar target 135mm f / 4 for this model is provided with screwable metal hood 52mm, shown below, and was intelligently designed so that it could I store screwed on target"" back and forth"" . It should be noted, if you still are using, or planning to use one of these cameras, the circuit of the meter remains powered at all times. Once the film wrapped, the meter runs at full power, otherwise consumption is reduced. Given the difficulty in obtaining suitable batteries (PX-825), one could think of no wind the film until you are ready to take a picture and remove the batteries from the camera when not in use.