Iconometer

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Dismountable iconometer (around 1900)
Pouva Start with open frame viewfinder (around 1950)

An iconometer , also called frame finder , picture knife , cutout knife , later also called sports finder , is a device for dividing the picture for handheld cameras .

description

The iconometer consists of a metal rod with millimeter graduation, on which a small frame is slidably mounted on a rider. One end has a small disc with an opening ( diopter ). If you look through the opening and the frame, you can see the desired image section.

The size of the frame cutout and the distance between the sight hole and the frame must be set beforehand on the metal rod according to the focal length and the angle of view of the lens used.

Fold-out frame finders were later installed directly on the handheld cameras.

See also

literature

  • JM Eder: Ext. Handbook of Photography , 1st part, 2nd half, hall a. P. 1893
  • Heinrich Keßler: Die Photography , 4th edition, GJG, Berlin and Leipzig 1914

Web links

  • The Kurt Tauber Collection: Goltz & Breutmann Mentor Reflex 9 × 12 cm , frame finder
  • The Kurt Tauber Collection: Kodak Retina , Rahmensucher b
  • Lippe Camera Museum: Voigtlander Bessa 66 with frame finder

Individual evidence

  1. ↑ AWUnger: in Lueger: Lexicon of the entire technology , 2nd edition 1904–1920, Vol. 05, p. 166
  2. ↑ Iconometer for Photographers. In: Polytechnisches Journal . 135, 1855, Miszelle 7, pp. 395-396.