Mathematisch-Physikalischer Salon / Staatliche Kunstsammlungen Dresden Arrow right Arrow left

photo - whole telescope
Basic Info

Maker: Unknown


Year Range: -

Year Notes:

Manufacturing Location:


Signature Notes:


No stand present.

Collection: Mathematisch-Physikalischer Salon / Staatliche Kunstsammlungen Dresden

Accession #: CIF 96


Project field work.

Public Notes:

Main tube made of wood, with brass fittings. Unsigned; no markings or inscriptions anywhere. Appears well-make, with fittings unscrewing easily. Four lens eyepiece with first 2 screwing in, last 2 pressure fitting, with notch to allow for focusing.

Length (open):

Length (closed):


Exit pupil:

Object status:

Optical Basics

Objective type: doublet (flint forward)

Optical style

Physical style

Functional style

Materials: wood, glass, brass

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data

CA curvature (diopters): CB curvature (diopters): PD lens power (diopters): fD focal length (mm): t thickness (mm): free aperture (mm): full aperture (mm): nD refractive index: ν Abbe No.:
Lens 1 0.75 11.92 0.00 237.75 25.00



Eyepiece 1
fD focal length (mm): free aperture (mm): full aperture (mm): s spacing (mm): CA curvature (diopters): CB curvature (diopters): M magnification: FOV field of view (degrees): Thickness:
Lens 1 25.00 9.51
Lens 2 29.48 13.00 40.00 32.77 32.02
Lens 3 31.65 12.00 40.00 30.01 29.93
Lens 4 34.20 16.00 40.00 28.01 28.01
Lens 5 26.22 10.00