Kaufmann Posographe 1928, exposure calculator + leaflet + case

€350.00

Kaufmann Posographe 1928, exposure calculator + leaflet + case

"Kaufmann’s Posographe is nothing less than an analog mechanical computer for calculating six-variable functions. Specifically, it computes the exposure time (Temps de Pose) for taking photographs indoors or out (depending on which side you use). The input variables are set up on the six small pointers; the large pointer then gives you the correct time. The variables are very detailed, yet endearingly colloquial. For outdoors, they include the setting -- with values like “Snowy scene”, “Greenery with expanse of water”, or “Very narrow old street”; the state of the sky -- including “Cloudy and somber”, “Blue with white clouds”, or “Purest blue”; The month of the year and hour of the day; the illumination of the subject; and of course the aperture (f-number). "

http://www.nzeldes.com/HOC/Posographe.htm

Rare early (1928) exposure calculator.  Complete with manuel and case.

Condition
The Posograph is in excellent working condition.

Cosmetic signs of use.

Included in the sale
Posograph
Manual
Case

Dimensions

Height: 18cm
Width: 13cm

Our service
We have been selling vintage astronomical instruments for over more than 10 years.
I'm a amateur astronomer myself and all instruments I sell are in good working condition.
I test all the telescopes under the stars and know the possibilities of each instrument
All the instruments are controlled and cleaned before shipping.
The necessary reparations are done.
If possible missing parts are replaced.
If not, read the item description carefully for possible defects.
Take a close look at the photos.
The advantage is you know exactly what you're buying.

We put a lot of effort in the wrapping of the items.
We use professional shippers for the world wide shipping.
We have experience in shipping large instruments up to the unique and complete 6" Unitron - Polarex
Each shipping has a tracking number.
If wanted the shipping can be ensured door2door

Returns are possible.
The buyer needs to know how to use the instrument in the right way.
There is a limited warranty because we don't sell new instruments but used vintage instruments.

International Buyers
We ship worldwide
We accept Paypal (no charges). Please contact us.

More information
We try to describe the item as accurate as possible. If the description isn't clear, please contact us.


  • photographic process: Photographica
  • Vintage photo made by: Photographica


  • Kaufmann Posographe 1928, exposure calculator + leaflet + case
  • Kaufmann Posographe 1928, exposure calculator + leaflet + case
  • Kaufmann Posographe 1928, exposure calculator + leaflet + case
  • Kaufmann Posographe 1928, exposure calculator + leaflet + case
  • Kaufmann Posographe 1928, exposure calculator + leaflet + case
  • Kaufmann Posographe 1928, exposure calculator + leaflet + case
  • Kaufmann Posographe 1928, exposure calculator + leaflet + case
  • Kaufmann Posographe 1928, exposure calculator + leaflet + case

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