Optical Accessories

This filter set is the OEM (Original Equipment Manufacturer) version of the ZWO 1.25" filters (SKU: ZWO LRGB1.25NEW): in practice this means they ...

1.25" Skyglow & Moon filter for telescope eyepiece  Specifications: 1.25" - standard filter thread Reduces glare for the observation of the mo...

2" Skyglow & Moon filter for telescope eyepiece  Specifications: 2" - standard large filter thread Reduces glare for the observation of the mo...

  Artificial Star Generator for Telescopes to perfect collimation Perfect the collimation of your instrument at any time, during the day without w...

Features enhanced 'Phantom' coatings with UV/IR cut for even better performance. Intensifies surface details on Mars, Jupiter and Moon – and enhan...

To use this adapter, simply unscrew the original end adapter that terminates in the M48 male thread on the flattener and replace it with this longe...

All metal construction Laser Pointer Bracket and Shoe.This bracket let you mount a common laser pointer on your telescope to use as a finderscope....

Use this ring to mount 2" adapters onto your 2.5" HEX Explore Scientific focuser.

This F6.3 Focal Reducer / Corrector design is a four-element, fully multicoated focal reducer and field flattener. It effectively reduces the foca...

Telescope Red dot finder finderscope – High quality, all metal construction  This red dot finder has a solid metal construction and base and fits i...

New 3.5" RotoLock. Suitable for WIFD GT81 (visual) & FLT 3.5" Focuser.Ultra smooth for perfect centering lock.

New Adjustable Dedicated Flattener for William Optics ZS61Optically-matched 1:1 Flattener for ZS61 APOIntegrated camera rotator.Internal thread acc...

Adjustable Reducer / Flattener for William Optics GT71, GT81, Z81, Z103 TelescopesThis elegantly designed 2" reducer / flattener has been designed ...