Unknown, 1665 c.
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Photo

photo - whole telescope
Basic Info

Maker: Unknown

Year: 1665 c.

Year Range: -

Year Notes:

Manufacturing Location:

Signature:

Signature Notes:

Inscriptions:

No stand present.

Collection: Optisches Museum

Accession #: 03/0181

Sources:

Public Notes:

Length (open): 1420

Length (closed):

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: singlet

Optical style terrestrial

Physical style

Functional style

Materials: pasteboard, vellum, wood, glass

Optical/Lab Data

Drawtube data:

Drawtube notes:

Handwriting in main tube and Draw 4. Drawtube measurements: 310 (Main tube), 198 (draw 1), 192 (draw 2), 195 (draw 3), 186 (draw 4), 187 (draw 5), 169 (draw 6), .

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 49.10 28.30

Eyepieces

Notes: