⭕ Carl Zeiss Jena Asembi D.F 12, 20, 40 X 80
80 mm portable terrestrial double telescope. Magnification 12X, 20X, 40X

The D.F. 12, 20, 40×80 terrestrial telescope was developed by Carl Zeiss Jena for battlefield surveillance

Focal length 500mm

From 1936-1940



Little bit of history regarding Carl Zeiss, Jena factory, and particular type of Asembi.

17th November 1846, Carl Zeiss opened up an precision optical instruments shop in Jena, the ducal capital of Thuringia.

He quickly ended up being the Court optician and was awash in orders for binoculars and spyglasses of all types.

His success was so great that his goods were soon sold through Germany and Europe.

Carl Zeiss legacy is still in very high standards, products starting from cellphone camera lenses to NASA spaceships optics.

D.F. The DF designation are been used for Army binoculars at least until the end of the Second World War.



Asembi model was introduced as an observation binocular in circa 1912.

After World War 1 there were 2 versions of this model: The civilian Asembi and the military D.F. version

(D.F. = Doppelfernrohr, always a marking of a military model).

D.F has a graticule (reticle, Strichplatte) and this is typical of a military model and „normal for a D.F.

D.F Indicates Doppelfernrohr, oculars for both eyes.

In this particular piece of equipment can be used with two persons simultaneously.

Condition is good, one eyepiece is damaged (see pictures)

Defects:Minimal paint damage, 12X eyecup has broken chunk of eyecup is missing.