Stereocycle

Late 1890s

Bazin et L. Leroy

Paris

France

Lens:

Two, f6.8, Berthiot Eurygraphe Anastigmat Symetrique No. 0c. Iris scaled ½ - 16, (Congress scale). Serial no. 29734 29735 .

Shutter:

Spring powered sector, speeds 1 - 5.

Construction:

Leather covered body.

Format:

24 (12 stereo pairs), 6 x 6 cm exposures on plates held in removable changing box.

Focusing:

Fixed.

Attributes:

Direct-vision (lens/post) view-finder.
Removable changing box with red window to view plate number. Separate release knobs for I or B.

Serial Number:

8047 .

With:

24 plate holders. Case.

The plates making a stereo pair are held in separate sheaths. After exposure the pressure plate is loosened, the camera is then rotated end-to-end twice. This moves two unexposed plates into the image plane. Each rotation moves a plate from the back of the left-hand stack to the back of the right-hand and a plate from the front of the right-hand to the front of the left-hand.

Illustrations:

Christie's Cat. 1/11/1979 lot 82. Model with different engraving on the back to the example here.

Early Photography