Secondhand & Stock

0.77X REDUCER/FLATTENER FOR ESPRIT-150ED TRIPLET Designed specifically for the Sky-Watcher Esprit-150 ED Apo Refractor, the new three-lens Focal Reducer/Flattener has a reduction factor of 0.77x. It comes with a standard adaptor with M48 thread edge and 55mm back focus for use with Sky-Watcher's M48 Canon EOS (code 20237) and Nikon (code 20238) adaptor rings. After removing the adaptor, an M71x1 internal thread with maximum 75mm back focus is available for self-made adaptor solutions. The Reducer/Flattener produces a fully illuminated and corrected image circle of 34mm diameter and is therefore perfectly suitable for image formats up to APS-C but can also be used for full format. Scope of Delivery: Esprit 150ED Focal Reducer / Flattener 2 screwable dust covers Adapter to M48 thread Specifications: Coating: multi coating Reduction:: 0,77x Connection to camera: M48 thread

Item condition: new and original packed

APM CNC tube rings for tube diameter 170 mm, price each set

Item condition: new and original packed

Schott N-BK7 high precision plane polished optical windows 135 mm diameter, 15 mm thickness with Zygo interferogramm from front and back side, see test sheet sample of Nr.3

Item condition: new and original packed

TeleVue Okular DeLite 13mm 1,25"

Item condition: new and original packed

APM Center Mount for 120 mm 45° APM SD Apo Binoculars

Item condition: new and original packed

Lunt Blockfilter B400 in 2"-diagonal

Item condition: new, but not original packed

Howie Glatter 2"/1.25" 650 nm Lasercollimator All of the collimators are powered by a CR123A lithium cell, giving about 40 hours of service, and about 4 hours in the 532nm collimator. They come with one battery, a plastic case and collimation donuts. All Laser Collimators incorporates a solid state laser diode that does not fade or change with time and use. Factory-aligned to 15 arc-seconds providing 0.1 inch accuracy at a distance of 20 feet. Shock resistant to keep its alignment - even when dropped. Includes 123A Lithium Battery, 1mm Aperture Stop, Removable Diffractive Element, Case, Collimation Rings and Instructions Delivery contains: Howie Glatter Lasercollimator 1 1/4" with 650 nm Laser Diode Battery Storage Case

Item condition: new and original packed

Skywatcher - Explorer 130PDS Dual-Speed Newton OTA

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.

BRESSER Reflektor 130/650 EQ3

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.

Zeiss Jena , made in DDR, Q1 Marking, T-Mount with couterweight, all mechanics working perfect, no bend , price per 1 pc

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.

Howie Glatter 2" 650 nm Lasercollimator All of the collimators are powered by a CR123A lithium cell, giving about 40 hours of service, and about 4 hours in the 532nm collimator. They come with one battery, a plastic case and collimation donuts. All Laser Collimators incorporates a solid state laser diode that does not fade or change with time and use. Factory-aligned to 15 arc-seconds providing 0.1 inch accuracy at a distance of 20 feet. Shock resistant to keep its alignment - even when dropped. Includes 123A Lithium Battery, 1mm Aperture Stop, Removable Diffractive Element, Case, Collimation Rings and Instructions Delivery contains: Howie Glatter Lasercollimator 2" with 650 nm Laser Diode Battery Storage Case

Item condition: new, but not original packed

APM Ceramic Safety 2" Herschelprism with APM Fast-Lock Eyepiece Adapter.For solar white light imaging and white light visual observing. The APM White Light Wedge comes with a built in ND3 filter which allows perfectly safe imaging or visual observing of the Sun. The APM Herschel prism is equipped with the ceramic light trap, an multicoated integrated multicoated ND3 filter and (removable) multicoated polarizing filter. The sun can be safely observed with the APM Herschel Prism.The image brightness can be adjusted by twisting of the 2 "polarizing filter by rotating the 2" eyepieceholder from outside . Thus, the Herschel Prism can be used both visually and also photographically same good!

Item condition: new and original packed