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

photo - whole telescope
Basic Info

Maker: Unknown

Year:

Year Range: -

Year Notes:

Manufacturing Location:

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Mathematisch-Physikalischer Salon / Staatliche Kunstsammlungen Dresden

Accession #:

Sources:

Field research.

Public Notes:

First eyepiece: "Umkehr"

Length (open): 750

Length (closed): 245

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: doublet (crown forward)

Optical style

Physical style

Functional style

Materials:

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 46.07 0.89 2.25 444.67 40.00

Eyepieces

Notes:

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 18.54 23.98
Lens 2 18.00 56.00 22.87 22.99
Lens 3 14.00 103.00 18.81 18.75
Lens 4 21.00 50.00 18.78 18.78
Lens 5 16.00 29.51 29.60