Secondhand

Elliptical secondary mirror diameter small axis 50 mm thickness 10 mm

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

Elliptical secondary mirror diameter small axis 54 mm , 2.14", thickness 12,3 mm from Antares Optics

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

Elliptical secondary mirror diameter small axis 55 mm thickness 13 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.

Celestron RASA 36 - 360 mm f/2,2 Rowe-Ackermann Schmidt Astrograph OTA, Serien Nr. 144, was used by Warwick Uni als loan instrument in La Palma. The # 91077 Celestron RASA 36 cm is the ultimate telescope for astrophotography in your observatory A highly corrected optical system with 36 cm aperture, f/2.2 for professional astrophotography 4-element lens group with ED glass (extra-low dispersion) for images without false colors, coma or field curvature 60 mm optimized image circle for perfect pinpoint stars up to the edge of the image, even with large camera sensors Extended spectral range up to 900 nm. This means that nebulae can also be recorded in the far red. The signal is even stronger Newly developed focusing system enables simple and stable focusing and keeps the primary mirror in the exact position during exposure Quiet 12 V MagLev fan with dust protection reduces cooling time M48 camera adapter included in the scope of delivery - working distance 55 mm 34 kg tube weight Supplied with 2 Losmandy-level dovetail bars for adapting accessories such as guide scope, viewfinder or camera mount

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

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.

Celestron 9.25" Schmidt Cassegrain with Starbright XLT Coating, inkl. 2" SC Adapter, Vixen like dovetail, 6 x 30 finder, Serial Nr. 964119. The spherical correction is excellent a, a star test video will be supplied

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.

Questar 3.5" with 8mm, 12mm and 16mm Questar Brandons, Broadband 03-11082-Z-BB, case, solarfilter for scope and solarfilter for finder and Powerguide II

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.

On offer to a loving home is a 1960's (or 70's) Questar Duplex Cervit-Mirror with BB coatings Mirror is spotless clean and no defects whatsoever. views are wonderfully typical to Questar. There is some mirror shift during focusing as well as overall age related minor body marks but nothing major. Has 2 original eyepieces and leather case with the table top legs and keys. in July 2024 the Questar was for a small service by Questar in USA Missing: Solar filter Small plexy RA indicator plate. Manual cable Inscribed serial numbers: #2-CV.4852-BB R5-CVDP 4852-BB OTA belongs to the Fork Mount.

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.

Dew Cap heater for C8 etc up to 250 mm

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.

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