These filters are positioned within a thin metal ring with a full 26mm clear aperture that threads into the barrel of any standard 1.25" eyepiece or filter wheel that can accept 1.25" filters. They help to increase contrast and reduce glare and light scattering. Each filter is threaded at both ends to accept another filter if required. Filters come inside individual plastic cases with a transparent window.

This Opticstar 1.25" eyepiece is suitable for both visual observation and imaging these are all-in-one high-transmission deep sky filters.

1.25" Moon Filter with 13% light transmission from Opticstar.

1.25" Moon Filter with 25% light transmission from Opticstar.

For the use in CCD imaging this high-transmission filter will exclude any IR wavelengths beyond H-alpha showing a very steep desirable curve.

This Opticstar Light Pollution Filter improve contrast for all types of telescopes; especially effective on the Moon and planets where they will show additional detail. It will also darken the sky background to enhance many deep sky objects like galaxies and nebulae against a darker sky background.

The Opticstar Light Splitter prism diagonal can be used to track or auto-guide and image at the same time. It greatly helps to centre and focus objects to be imaged with a CCD imager or film camera.

This 1x C/CS to 23mm microscope adapter, enables any C-mount camera to be attached to any microscope that accepts standard 23mm occulars. It includes a locking mechanism to secure the camera to the microscope.

This Opticstar Light Pollution Filter improve contrast for all types of telescopes; especially effective on the Moon and planets where they will show additional detail. It will also darken the sky background to enhance many deep sky objects like galaxies and nebulae against a darker sky background.

Advanced illuminated reticule eyepiece, both Plossl 6mm and 12mm models include micrometric x-y positioning controls that greatly facilitate locking onto the guide star by turning the threaded controls and placing the reticule's cross-line pattern precisely at the desired point in the field of view.

A premium quality adjustable three-part T/1.25" camera adaptor used for prime-focus and eyepiece-projection astrophotography with SCTs and refractors. It can also be used with Newtonians that have the necessary focus travel (otherwise a barlow lens is required).

Allows C/CS mount cameras to be attached to any standard 1.25" eyepiece holder. Simply remove the lens from the camera (if there is one) and screw in the adaptor. The adaptor is threaded for standard colour filters and turned with internal stepping to combat stray light. Made in anodised aluminium.

Allows C-mount lenses to be attached on CS mount cameras such as the Opticstar PL-300C, PL-130M, PL-130C, etc. These adaptors can also be used as 5mm spacers and several can be chained together. Made in anodised aluminium.

A premium quality adjustable three-part T/1.25" camera adaptor used for prime-focus and eyepiece-projection astrophotography with SCTs and refractors. It can also be used with Newtonians that have the necessary focus travel (otherwise a barlow lens is required).

ED 80mm FPL-53 Fluorite Doublet ( FR: f/6.25 ) with a 10:1 micro focuser, 2” rotatable back, a retractable dew shield, knife-edge baffles, machined aluminum rings and a Aluminum carrying case.

When attached to a telescope the f0.5 focal reducer will typically reduce exposure times to near a quarter when imaging extended objects like galaxies, nebulae and the Moon.

Nebulosity is designed to be a powerful, but simple to use capture and processing application for a wide range of astronomy CCD cameras. Many cameras are supported for capture (see below) and images from just about anything can be processed (support for many FITS formats, PNG, TIFF, JPEG, CR2/CRW, etc). Its goal is to suit people ranging from the novice imager who wants to create his or her first images to the advanced imager who wants a convenient, flexible capture application for use in the field.