$100 to $200

Explore Scientific Nebula Filter 1.25" CLS Range from 436nm to 536nm with peak at 488nm. Transmission 98.3% This is a general-purpose light-polluti...

Features 4K Wifi Waterproof Action Camera Waterproof Case Rechargeable Battery USB Cable Remote Handlebar/Pole Mount Frame Mount Straps Release B...

Explore Scientific Nebula Filter 1.25" UHC Range from 458nm to 508nm with peak at 488nm. Transmission 96.7% UHC - This is an ultra-high contrast na...

Features Reflection / Transmission LED Illumination 3 Lenses: 4X / 10X / 40X Dust cover Included: Permanent slides, Slides, Microscopy instrument...

Features High quality Explore Scientific O-III filter Let only the oxygen emission lines "through" Absorbs all other emission lines Absorbs almo...

Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

  Schedule Updated 9/21/2022 We are excited to announce the second Ariz...

Learn astrophotography processing techniques through 1-hour Astro Courses with Master MENTOR and astrophotographer Gary Palmer.  An Explore Allianc...

Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

Features Combination of fully multi-coated lenses and superior Bak-4 prisms generate images rich in contrast Combination of fully multi-coated le...

Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwid...

Features Waterproof 10x magnification 42mm lens diameter 384ft field of view at 1000 yards Case, strap and cleaning cloth Description The Nati...

Features High quality Explore Scientific H-Alpha filter Lets only the emission lines of hydrogen "through" Absorbs almost all of the artificial l...

Features Reveals Details of Artwork and Crafts Fully Coated Optics Ribbed Rubber Focus Collar Fold-Down Rubber Eyecup BK7 Roof Prism Exceptionall...

Features Dark-Sky filter Contrast increase in aurora & deep-sky photography Reduction of stray light from street lights, for example Wide-ang...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Waterproof National Geographic Harness 283ft field of view at 1000 yards Carrying case and lens covers included Description These ver...

Features 8x Magnification Waterproof Twist-up Eyecups 394ft field of view at 1000 yards Case, strap, lens covers and cleaning cloth Descriptio...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features Very high sharpness and contrast across the entire field of view Almost no color defects due to lanthanum glass Twist-Up eyecup for peop...

Features 80mm aperture will reveal impressive lunar details ranging from craters to rilles, planetary features like Saturn’s ring structure or Ju...