Aires Viscount

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General information

The Aires Viscount is a leaf-shutter 35mm rangefinder camera made by Aires in 1959. It's entirely mechanical, with a very quiet Seikosha-SLV leaf shutter, and does not have an exposure meter. Later models had a Seikosha S shutter, without slow speeds.

Its dimensions are 13 cm (L) x 7.5 cm (l) x 8.5 cm (h).


The camera comes with a six elements 45mm f1.9 H Coral lens or a four elements 45mm f2.8 Q Coral lens (less common). The diaphragm has five blades, is in front of the shutter.

A supplementary lens can be mounted on that camera to change the focal length from 45 to 80mm.

Using the camera

All the set-up operations are made by using rings on the lens. Starting from the closest of the front lens:

  • Diaphragm ring:

Available values are: 1.9, 2, 2.8, 4, 5.6, 8, 11 and 16.

  • Speed selection ring:

Available values are: B, 1, 2, 4, 8, 15, 30, 60, 125, 250 and 500.

  • Shooting mode selector:

Available modes are:

  • Focusing ring

Current exposure value is shown on the speed ring, in function of the diaphragm and speed selected. The focus ring comes with a depth-of-field indicator.

The camera uses the Exposure Value system. The speed ring is attached to the diaphragm ring, making it impossible to set a speed independently from the diaphragm in less than two moves. The contrary is however possible. Also, when the speed ring is moved, the diaphragm ring follows it, so the camera keeps the actual EV setting.


In English and in Italian:

In English:

In Japanese:

In English and French: