Unknown, 1675 c.+25
Adler Planetarium and Astronomy Museum Arrow right Arrow left

photo - whole telescope
Basic Info

Maker: Unknown

Year: 1675 c.+25

Year Range: -

Year Notes:

Manufacturing Location: Italy


Signature Notes:


No stand present.

Collection: Adler Planetarium and Astronomy Museum

Accession #: M-422a


Project investigation

Public Notes:

Main tube is covered in brown leather with gold tooling. There are many (11?) draw tubes with floral decorations. The objective lens is missing.

Length (open): 3200

Length (closed): 690


Exit pupil:

Object status:

Optical Basics

Objective type: singlet

Optical style

Physical style

Functional style

Materials: leather, glass, horn, pasteboard, vellum, wood, gold tooling

Optical/Lab Data

Drawtube data:

Drawtube notes:

Objective Data



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 81.40
Lens 2 91.70
Lens 3