$25 to $50

Description Dual plug (DB9 FTDI chipset and USB 2.0 Mini B) works with PMC-Eight OPENGoTo systems, allowing ASCOM communications between a compute...

Description Connects Telescope, Spotting Scope with DSLR Camera The T Ring is designed to be used for Astrophotography in conjunction with other ...

One size fits all 100% Cotton velcro cap. 100% cotton One size fits all CA Residents: Prop 65 WARNING(S)

Features 1.25 "linear polarization filter Socket with 1.25 "filter thread Also suitable for Lunt Herschel wedges Description Simple linear 1.25...

Description For Prime Focus Photography with Telescope Leaves the inner diameter large by attaching a T Ring by screwing in each of the knobs, i...

Description It allows you to use an polar alignment scope PF-LII, polar alignment scope PF-L or SX polar axis scope for the POLARIE U. The polar s...

Description For smooth setting up of POLARIE and AP equatorial mount The polar meter is a "unlikely" design that summarizes level, compass and in...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 2.3 mm Connection: 31.7 mm, 1...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eyepoint distance: 3.0 mm Connection: 31....

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 4.5 mm Connection: 31.7 mm, 1...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 6.5 mm Connection: 31.7 mm, 1...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 11 mm Connection: 31.7 mm, 1 ...

Features High-quality NPL eyepiece with 50° field of vision Good contrast and reduced color aberrations Eye relief: 15 mm Connection: 31.7 mm, 1 ...

FREE Explore One 30mm Compact Binoculars, when purchasing an Explore Science STEM product. To activate this promotion, add both items to your cart ...

Description The UHC filter can reduce the negative impact of artificial lights and airglow when shooting deep sky objects. Just install the filter...

Description A plate for balancing optical tube This is a plate to balance an optical tube. Replace it with an attachment plate and use it. Length...

Description Possible to change the diameter SUsing this eyepiece adapter, you can convert from 42mm male T-thread to 31.7mm (1.25 inch). Thereby,...

Features Rock tumbler mimics natural weathering process to turn rough-edged rocks into smooth shiny stones with intriguing colors and patterns. J...

Description For mounting optical tubes onto SX, GP2 series mounts Fits the mount head of AXD or SXP directly. Fits New Atlux equatorial mount by u...

Description For DD-2 controller, Dew Heater 2, Color CCD Camera C0014-3M. Specs Dimensions 140x80x80mm Plug ID 2.1mm OD 5.5mm DC plug with cen...

FREE Explore One 30mm Compact Binoculars, when purchasing an Explore Science STEM product. To activate this promotion, add both items to your cart ...

This is a hands-on guide for both the budding astronomer in need of a mentor and the seasoned observer who wants to learn how to effectively share ...

Features Lightweight tripod easily converts from tabletop to full-size model Mount design provides a secure fit for steady viewing during long ob...