Products

Take back the night sky by using the Optolong L-eXtreme 1.25" Dual Passband filter when imaging. Take your backyard imaging to places you never tho...

The Optolong 1.25" L-Pro light pollution filter is a great way to suppress the issues caused by all these lights that are all around us. This mount...

Look no further for an LRGB set for your 1.25" filter wheel or drawer. Time to get serious with your monochrome CCD or CMOS camera.  The filter set...

Take your imaging up a notch with the improved OIII filter from Optolong. Optolong filters are here to help all of us Earth based Astronauts.  As l...

Take your imaging up a notch with the improved OIII filter from Optolong. Optolong filters are here to help all of us Earth based Astronauts.  As l...

The SII 6.5nm from Optolong works fantastically as a photographic filter, but also works for viewing faint nebula. Optolong filters are here to hel...

This Pentax zoom eyepiece is physically sized for use with the compact 65mm Pentax spotting scopes. It can also be used with the 80mm and 100mm Pen...

This is an ultra-premium six-element zoom eyepiece. It has a long eye relief that's particularly well-suited to those who must wear eyeglasses whil...

This Questar slip-fit adapter lets you use a 1.25" image erecting diagonal with a Questar 3.5" telescope or spotting scope.This Questar 1.25" slip-...

This is an excellent medium high to high power eyepiece (108x and 162x in the 3.5" Questar) for observing lunar and planetary detail, resolving glo...

This is an excellent medium power eyepiece for lunar observing, resolving globular clusters, picking up details in the more compact emission and re...

This is an excellent medium to low power eyepiece (53x and 80x in the 3.5" Questar) for lunar observing, resolving globular clusters, viewing the m...

This is an excellent low power eyepiece for capturing galaxy pairs and compact galaxy clusters, viewing emission and reflection nebulas and smaller...

This premium Questar 45° viewing angle image erecting diagonal fits into the back of any Questar 3.5" scope to provide upright and correctly left-t...

This is an excellent very high power eyepiece (best used with the 7" Questars) for observing lunar and planetary detail, resolving globular cluster...

This is an excellent high power eyepiece for observing lunar and planetary detail, resolving globular clusters, picking up small planetary nebulas ...