Secondhand & Stock

very rare example of a Zeiss 80mm f/6 Comet Finder, circa 1916. (Astro 30 cat. p.20). I have located only two others that have come up for public awareness in the last few years, one in Austria and another in Lazio, Italy. This brass instrument was designed as a wide-field scope to scan the heavens for comets. Therefore, it was created to operate at lower powers and not for high-powered detailed planetary work. It has a beautiful type "C" objective with a focal length of 49cm, serial #9088. The OTA minimum length is 25" and weighs a robust 25 pounds w/display pedestal. Awesome views of the moon and star fields! brief chain of ownership I have discovered for the Comet Finder. The previous caretaker was Walter Breyer who purchased the scope from Michael Sadigursky in California (1993). I can't find out anything about Mr Sadigursky, but I do know some info of interest about Mr Breyer. Mr Breyer was probably best known as the secretary of the Antique Telescope Society up until his passing. A little known fact about him is that he was a descendant of the founder of Breyer's ice cream which is very popular in USA. Included items: OTA w/objective cell 12cm balance/extension tube Triple eyepiece revolver for 2 - 0.965" oculars plus 40mm Kellner eyepiece Carl Zeiss 25mm Huyghens 0.965"eyepiece Eyepiece slide tube 0.965" Quick-release adapter (female) Quick-release adapters x2 (male) Aperture reducing cover Dew shield OTA clamp/trunions Mounting Fork for 20mm post Brass display pedestal w/20mm post (can be adapted to a tripod) Wooden display base No tripod included

Item condition: used, but with visible cosmetic markings

we have build and very much tested under real sky a high quaity 20" F/8.5 Maksutov Cassegrain ( Rumak Design) , optics made by Santel in Russia, Mechanics made by Matthias Wirth in Germany. The beast is now for sale . It comes with a set of tube clamps, dew cap, 3" Starlight Feather Touch extension, meniscus heater, main mirror vent, 2 maintenance flaps, handles to move tube, and 2 sets of losmandy dovetail holders for large guiding telescopes. The optics are very smooth and have excellent spherical correction. The lens is broadband multi-coated on both sides. The cooling behavior is excellent.

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Meade 7" F/15 Maksutov Cassegrain, optical tube in excellent condition with some accessories

ZEISS Jena cloth Sticker

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

EVOGUIDE-50ED 50MM GUIDESCOPE

Item condition: new and original packed

50mm guidescopes

Item condition: new and original packed

Meade DS2070AT Goto Refractor, complete goto refractor, DS mount, eyepieces, star diagonal and small finderscope

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

Zeiss Jena Cameraobjectiv Flektagon 4/50

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

60mm guidescope

Item condition: new and original packed

Altair DELUXE 70mm Imaging Extension Tube

Item condition: new and original packed

Zeiss Jena Cameraobjectiv Tessar 4.5/250

Item condition: used Item with possible small cosmetic deffect, but every function works perfect

Wichtiger Hinweis zur Mehrwertsteuer:
Dieses Angebot unterliegt mit Ausnahme der Versandkosten gemäß § 25a UStG der Differenzbesteuerung, weshalb auf den angebotenen Artikel keine Umsatzsteuer erhoben und ausgewiesen wird.

EXPLORE SCIENTIFIC 8x50 Finder and Guider Scope with Helical Focuser, 1.25inch and T2 connection

Item condition: new and original packed