Products

Reduces an astrophotography refractor’s effective focal length by a factor of 0.8x, providing a shorter, more optically fast focal ratio. Designed ...

A secondary mirror (or secondary) is the second deflecting or focusing mirror element in a reflecting telescope. Light gathered by the primary mirr...

A secondary mirror (or secondary) is the second deflecting or focusing mirror element in a reflecting telescope. Light gathered by the primary mirr...

A secondary mirror (or secondary) is the second deflecting or focusing mirror element in a reflecting telescope. Light gathered by the primary mirr...

Choose the Bintel Star Diagonal 1.25 inch mirror diagonal for brighter views in your scope For astronomical viewing a star diagonal, with its 90°...

Bintel 2-inch Mirror Star Diagonal with 1.25-inch adapter This high quality 90-degree multicoated mirror diagonal allows you to use 2" eyepieces. ...

Bintel Star Diagonal 2 inch dielectric slip in style to suit refractors with a 2" focuser. 99% reflectivity dielectric coatings ensure maximum lig...

SuperView 15mm eyepieces are good for viewing open clusters, nebulae and galaxy clusters. Includes a soft rubber eyeguard. High quality optics, ful...

SuperView 20mm eyepieces are good for open clusters, nebulae and galaxy clusters. Includes a soft rubber eyeguard. High quality optics, fully multi...

SuperView 30mm eyepieces are good for open clusters, nebulae and galaxy clusters. Includes a soft rubber eyeguard. High quality optics, fully multi...

Bintel Tablet holder will allow you to put your tablet onto a tripod and operate hands-free. Great for Facetime or Skyping Suit most 7-10 on iPad, ...

Bintel Twist lock Mirror Star Diagonal 1.25"

Bintel Twist lock Mirror Star Diagonal 2" The anodised twist lock mechanism firmly grips eyepieces from all sides without the possibility of leavin...

Bintel UHTC Cleaning Solution Our cleaning solution is the same solution as used in most optical labs worldwide. It is made using 99.7% Technical g...

Bintel USB to Serial RS232 Cable Supports all standard serial devices USB 2.0 and USB 1.1 Compliant “Plug & Play” Connectors: 9-pin D Male to ...

Raptors are popular and iconic birds, and are important ecologically, with some species listed as threatened. Yet they are among the most difficult...

A glow-in-the-dark, interactive guide to the Solar System, carefully crafted to make complex STEM concepts like astronomy, physics and chemistry un...

The BORG 107FL Telescope Set CR is the premium model BORG telescope, designed for professional astro-watchers. This telescope features a 600mm foca...

Superb optical performance thanks to Canon Optron, Inc. fluorite glass elements in the optical construction. The precise optical design results in ...

The BORG 90FL CR has exceptional optical resolution, accomplished by apochromat fluorite glass elements from Canon Optron, Inc. built in the optica...

Main Features Back Focus Distance: 60mm Image Coverage: Full Frame Objective Side Interface: M57 Male Camera Side Interface: M57 Female

The reducer (7880) reduces the focal length from 250mm to 200mm, brightens the aperture from f/4.5 to f/3.6, and improves image quality from corner...

M57 DXII helicoid focus unit

Main Features: 125mm to 155mm long Largest ID 77mm, smallest section 70mm Removable threaded rings allow to reverse the focuser direction. Finest ...