Voigtlander Turnit 2

Turnit 2nd model

Turnit finder (339/35) from 1954.
Identical with Turnit from 1953, but all metal.
Fits on the accessory shoe of interchangeable lens cameras.
Makes view easier with 35 and 100 mm lenses due to a larger image without parallax (distance adjust by cursor).
Rotating 180° this attachment allows to easily change focals.
A mask allows to use it with a 50mm lens.

Turnit with its case.

Turnit in partial rotation.

On the left, set on infinity. On the right, set on 1 meter.
The eyecup moves from the bottom to the top to correct parallax.