Goerz panorama battery telescope



The Goerz panorama battery telescope was expecially intended for the observation of targets and the direction and control of fire. It was equipped with the same goniometer of the gun-sighting telescope, and as general rule it was as similar as possible to the the optical devices of the gun. The main difference was the magnifying power, that was twice as great as it, in order to locate the target even when it was very far from the observer or was covered or masked, and to verify the effect of fire, even when the conditions were adverse.

The eye-piece was adjustable to the eyes of the observer and was equipped with diopter arrangement. The micrometer, besides the cross usually employed to indicated the optical axis of the instrument, had a reticle, which enabled not only to aim accurately, but also to calculate quickly the extent of the target, the height of burst, and the errors in direction.


Usually the battery telescope was mounted on a tripod, which could be carried tied to the saddle of the observer, or on a carriage. In the first case its legs could be shortened, and the top was hinged to the head of the tripod, which could be packed in a small-sized leather bag. In the second case the legs could not be shortened, and the tripod was attached to the carriages like an aiming post. The head of the tripod with the telescope was not fixed to their legs, but was bound at it. On the march it was put in a case or a bag carried in a box with the telescope, and, before the use, it was pulled off and carried in the ammunition belt. The battery telescope was connected with the tripod in the same way as the gun-sighting telescope, and, if necessary, they could be exchanged each other.


To set up the telescope, the observer should loosen the clamps of the of tripod legs, adjust the sliding portions to the desired height, and press each leg well into the ground. To lay the instrument, he should use a special device and cross levels. By means of a worm gear he could accurately point the telescope in direction and in elevation, after having placed it at level zero of its graduation.

The tripod could be replaced by a shield or an observation ladder, equipped with a socket where the head of the tripod with the telescope could be fixed. The shield could be on an ammunition wagon or directly on the ground. Since only the reflector of the telescope should exceed the top of the shield, the observer was fully covered.


The Bulgarian regulations gave detailed instructions for the use of the battery telescope to calculate the distance from the target, to determine the angle of site, and to direct the fire from a covered position, placing the telescope near the guns and using auxiliary aiming points.

The Goerz panorama battery telescope was introduced in 1905, and was continuously improved and updated year after year. Before the outbreak of World War I it was adopted  by the army of many countries, among them Turkey, that in 1906-07 assigned this battery telescope to the field batteries, whose guns were originally equipped only with plain arc sight, and no dial sights.


SOURCE : Société anonyme C.P. GOERZ : La lunette panoramique. Berlin – Paris 1907.




Technical characteristics


Weight of the telescope :

1.85 kg

Magnifying power :


Actual field of view :

Fictive field of view :


Entrance pupil :

16 mm

Exit pupil :

2 mm

Focal length of the objective :

120 mm

Focal length of the eyepiece :

15 mm

Vertical distance between the axis of the eyepiece and the axis of the reflective prism :

180 mm

Deviation of the reflective prism :

± 300‰

Scale of the goniometer :