Optical Accessories

APM XWA 110° 5mm Eyepiece - 1.25"/2"

The 0.6x reducer can bring the Askar 103APO's focal ratio down to F4 while also providing field flattening. Askar 103APO adopts a detachable tube ...

Askar 0.76x Reducer for 80PHQ

The backfocus is the standard 55mm. It comes with three thread adapters of M68, M54, M48 , so it is convenient for connection. Askar’s new-lau...

The 0.8x reducer can bring Askar 103APO's focal ratio down to F5.4. This is a standard reducer with field flattening capabilities as well. A short...

The 1x flattener does not change the telescope's focal ratio itself. After connecting with the Askar 103APO, it still maintained a focal length of ...

The Askar new FRA400 F3.9 full-frame reducer reduces the telescope’s effective focal ratio by a factor of 0.7x, thus an original f/5.6 becomes an f...

The Askar 3 inch F3.9 full frame reducer features 4 elements optical design specifically for the FRA600, offers a 0.7X reduction in focal ratio, wh...

After the 2" 6nm duo-narrowband filter (Hα+OIII), Askar ColourMagic Specially launches the SII+OIII 2" 6nm duo-narrowband filter, which is further ...

Askar newly launched ColourMagic Super D 2" Duo-narrowband filter, is a professional astrophotography tool specifically designed for deep-sky imag...

Askar newly launched ColourMagic Super D 2" Duo-narrowband filter, is a professional astrophotography tool specifically designed for deep-sky imag...

ColourMagic C 2" Duo-band filter is a professional astrophotography tool specifically designed for deep-sky imaging. The ColourMagic C1 duo-band f...

Colour Magic C 2" Duo-band filter is a professional astrophotography tool specifically designed for deep-sky imaging. The Colour Magic C2 duo-band ...

Askar MCP90 (Multi-Connection Plate 90) is a professional design especially for FRA400/5.6 astrograph. But it also works well with other various ha...

Astrodon 52mm Screw-in Filter Cell is for placing Astrodon 50 mm diameter filters in 52 mm threaded mounts for camera lenses.

Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 E-Series Tru-Balance F...

UV-Blocked Clear filters with 395 nm cut-on (50% transmission at 395 nm) and at least 97% transmission to 1000 nm. Often purchased with our photome...

Astrodon introduced the ExoPlanet-BB filter for use in amateur-scale telescopes to measure light curves of exoplanets.Although it may not seem poss...

Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 E-Series Tru-Balance F...

Luminance and Blue Filters are the same in both the E and I series. Only the Red and Green filters differ.Astrodon LRGB Gen2 I-Series Tru-Balance F...

H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and i...

H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and i...

Spectral profiles designed after U, B, V, Rc, Ic Johnson/Cousins Improved B filter (B***) extending blocking >1100 nm and eliminating small lig...