Secondhand & Stock

Schott N-BK7 high precision plane polished optical windows 105 mm diameter, 10 mm thickness with Zygo interferogramm from front and back side. See Testsample attached

Item condition: new and original packed

Astronomik 2" O-III filter 12nm

Item condition: new and original packed

Solarfilter by Euro EMC Special Version for 12" Maksutov Newtonian by Matthias Wirth with Front Main Mirror Adjustment, ND5.0 Baader Astro Solar

Item condition: new and original packed

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.

Equatorial platform for Dobson , 49 latitude , up to 70 cm diameter footprint

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.

German Tank eyepiece with 90 degree erect image prism, coating and glas in mint condition , include swing-in yellow filter

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.

Masuyama eyepieces are known for their clear and high contrast imaging and velvet black background. The good contrast of these high-end eyepieces is achieved by better grinding and internal baffles combined with the best possible internal blackening. Due to the elaborate lens design, the eyepieces get by with only 5 elements, with good correction at the same time. Despite the large field of view, the short focal length Masuyama eyepieces are fully recommended for planetary observation. At the same time, the eyepieces are of course very nice overview eyepieces for deep-sky observation. The long focal length eyepieces are well suited for finding and observing large area deep sky objects. The eyepieces were developed by renowned optician Dr. Masuyama. Among other things, Dr. Masuyama designed an eyepiece with a focal length of 100 mm, which was used on the historic 60-inch telescope at Mount Wilson Observatory in California. We are pleased to offer you these legendary eyepieces with the latest glass and coating technology. Scope of Delivery: Eyepiece Dust Caps

Item condition: new, but not original packed

APM Hardcase for APM 70 Binocular

Item condition: new, but not original packed

APM hard case in schwarz for 120mm bino 45 degrees, with small mechanical effect that has no influence on the binocular protection

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

Skywatcher - Startravel-102T Refraktor OTA

Item condition: new and original packed

APM HI-FW 12.5mm 84° 1,25" Ultrawide eyepiece, like new

Item condition: new, but not original packed

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.

Easier for beginners, certainty for professionals! The completely redesigned and revolutionary collimator version 3.0 for your telescope. The market continues to develop towards short focal lengths and highly sensitive cameras with extremely small pixel sizes. This increases the requirements for a clean telescope alignment. The Ocal collimator is an innovative tool, which facilitates the adjustment in a completely new way. Each Ocal collimator has an internal motor that moves the CMOS chip linearly. Via the software, the focus can thus be ideally adjusted to the individual areas of the alignment. So you can focus on any area in the telescope without touching the setup or imagetrain. Colored centering circles can be selected and adjusted via the included software. The software also controls the line width of the circles as well as the contrast and exposure of the live image. Last but not least, a fade cross can be switched on and rotated via software. In this way, all areas that are important for the adjustment can be brought into focus and concentrically aligned very precisely. With the alignment of the crosshairs, the exact linear alignment of the trap can be assessed. Scope of delivery: OCAL 3.0 Connection cable 2x adapter Closing cap

Item condition: new, but not original packed