Western PA has not cooperated with my viewing. Since I acquired the Vespera II I...

Used this filter to view the recent occultation of Mars. It was very helpful in ...

This lens cap fits perfectly on my orange 1970's Celestron C8 SCT telescope.

Great addition. Not only helps with nebulae, effective in areas with heavy light...

Got this to replace svbony 35mm guide scope and wow. . . so much easier to focus...

I have been using an Orion 150 Mak Cas F12 1900mm for a few years now, and it's ...

Perfect size for my 275mm small scope.

As a beginner using an RC telescope I read a lot of different opinions and metho...

I bought the Apertura Losmandy 14” to replace the original 11 3/4” Vixen mountin...

Have not got to use it yet. In the winter in Oregon, it’s cloudy and rainy most ...

I ordered this early this year, and it took a few months to arrive from back ord...

The case easily accommodates my single weight and appears to have sufficient vol...

I purchased the Stellarmate X after working with Stellarmate on a Raspberry Pi f...

Like with everything I've purchased from HPS, Their service was excellent.

Very sharp edge to edge on ZWO 2600 MC Pro. No obvious vignetting. After process...

Excellent quality

Heater keeps camera from fogging up.

Bought this cord for my EQr6 and it works great. Nice build quality.

Bought this to protect my Sky-Watcher Esprit 80ED refractor with camera and filt...

great addition to my kit, simplifies the wiring and reduces sources of power pro...

I was a bit skeptical that it could produce a 0. 67x focal reduction with only a...