Secondhand & Stock

Elliptical secondary mirror diameter small axis 31 mm thickness 10 mm

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

Elliptical secondary mirror diameter small axis 38.6 mm, 1.83", thickness 8 mm from Antares Optics

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

Elliptical secondary mirror diameter small axis 46 mm thickness 10 mm from Antares Optics

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

Elliptical secondary mirror diameter small axis 48 mm thickness 10.5 mm

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

Elliptical secondary mirror diameter small axis 55 mm thickness 10 mm

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

diagonal prisma 60 mm wide, uncoated, weight 277 gram

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.

Flat mirror Rectangular 46 mm x 61 mm x 8.9 mm with small traces of scratches on the mirror coating

Item condition: used, but with visible cosmetic markings

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 West aspherical wide angle eyepiece 10 x 25 , 1.25" APM Barrel with Filterthread, 25 mm, for eyeglas wearer # 46 40 03

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.

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

Aperture 12" - 304 mm Focal length 3648 mm Focal ratio f/12 Field illumination ideal for observation and for lunar and planetary photography Hyperbolic secondary mirror and parabolic primary mirror made of quartz glass for stable focus 99 % reflection on primary and secondary mirror for a bright image Faster cool-down time thanks to open design Purely reflective system without Schmidt plate or meniscus lens - therefore also fully suitable for infrared Only 33 % linear obstruction - therefore suitable for visual observation Gen.2: 3" dual-speed RAP focuser with rack and pinion drive and ball bearings for high stability and accuracy M117 extension tubes - so you can reach the focus with any accessory Losmandy style dovetail bars on both sides for easy adaptation to all common mounts with Losmandy style connection Carbon truss tube design for a stable focus position Finder shoe for Skywatcher/Vixen/TS finder (standard base) is mounted.

Takahashi Newtonian Teegul 100 with Mount and tripod and finderscope, used

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.