Orthostereoskop

Region: Germany Period: 1890–1930 Tag: ICA

The Orthostereoskop has external similarities to the Holmes–Bates stereoscope but is more versatile. The viewer incorporates a sliding black frame positioned between the lens panel and the stereoview holder. This window allows the stereoview to be precisely framed, which contributes to an improved viewing experience. The frame is adjustable from 8 x 11 to 8 x 16 cm. The high-quality lenses of the Orthostereoskop provide strong magnification.

Related items: Holmes-Bates stereoscope ICA

Specifications:

Classification:

Hand-held / Single-view

Introduction:

c. 1920

Designer:

ICA

Maker:

ICA

Construction:

Wood

System:

Open

Medium:

Paper and glass

Models for the formats:

9 x 18, 10 x 15

Lens:

Convex

Lens focus:

Yes

Inter-ocular adjustment:

Yes

Further reading:

Wing, Paul. Stereoscopes: The first one hundred years (1996) , p. 196

Published: 14-03-2026 Last modified: 24-04-2026

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