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Campi, Giovanni Battista, 1750 c.+25
Louwman Collection of Historic Telescopes Arrow right Arrow left
Photo

photo - whole telescope
Basic Info

Maker: Campi, Giovanni Battista

Year: 1750 c.+25

Year Range: -

Year Notes:

Manufacturing Location: Genoa, Italy

Signature: Gio Batta Campi Genova

Signature Notes:

Inscriptions:

No stand present.

Collection: Louwman Collection of Historic Telescopes

Accession #: LC 76

Sources:

Louwman, P.J.K., and Zuidervaart, H.J., "A Certain Instrument to See Far: Four Centuries of Styling the Telescope Illustrated by a Selection of Treasures from the Louwman Collection of Historic Telescopes". Wassenaar, 2009. p.91. #81.

Louwman, P.J.K., and Zuidervaart, H.J., "A Certain Instrument for Seeing Far: Four Centuries of Styling the Telescope Illustrated by a Selection of Treasures from the Louwman Collection of Historic Telescopes". Wassenaar, 2013. p.94. #76.

Public Notes:

"Main tube covered with grey coloured sharkskin. Three green coloured drawtubes. Ferrules made of horn. Endpieces made of ivory . Signed on the objective lens: ‘Gio Batta Campi Genova’. The eyepiece lens is missing. Length 29-81 cm, Ø 4 cm. Third quarter of the eighteenth century" (Louwman and Zuidervaart, 2013).

Length (open): 810

Length (closed): 290

F-ratio:

Exit pupil:

Object status:

Optical Basics

Objective type: singlet

Optical style

Physical style

Functional style

Materials: horn, ivory, sharkskin, glass

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 40.00

Eyepieces

Notes:

Additional Photos/Documents