Under $500

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 ...

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...

Essential for Time-Lapse Photography Specs Connecting to the POLARIE U 2.5mm stereo mini plug Connecting to the camera Multi-connector pl...

Description Camera Adapter for Telescope Eye Projection Photography Attachable to flip mirror or R200SS focuser. ※Not usable with LVW series eye...

Features Works in every scene from concerts to trekking Waterproof design filled with inert nitrogen gas Special rubber processing exterior to wi...

Features Works in every scene from concerts to trekking Waterproof design filled with inert nitrogen gas Special rubber processing exterior to wi...

Features Works in every scene from concerts to trekking Waterproof design filled with inert nitrogen gas Special rubber processing exterior to wi...

Description Compact, durable and ergonomically designed for ease of use, the Vixen Foresta VX1200 Range Finder can accurately measure distances fr...

Features A long eye-relief of 15mm prevents you from eye fatigue for long observation. The incorporated roof prisms allow the Multi monocular for...

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

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

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

In order to unlock the mysteries of the corona, but also to protect a society that is increasingly dependent on technology from the threats of s...

Today, astronomers and researchers, both professional and amateur, have unprecedented access to online science data, allowing a greater unders...

The first positive detection of water ice on Mars was from the Phoenix Lander that scraped away some surface dust to reveal pristine ice belo...

Humans have been obsessed with the measurement of time perhaps as far back as 100,000 years ago. Dr. Barth guides us through evidence of meas...

Stromatolite fossils are a dominant record of life for most of Earth’s history prior to the appearance of complex, multicellular organisms. S...

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

In 2019, NASA announced that an international team had found sugars essential to life in meteorites. The discovery added to the growing list o...

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

Features 10x Magnification Waterproof Twist-up Eyecups 325ft field of view at 1000 yards Case, strap, lens covers and cleaning cloth Specs ...

Features 10x Magnification Waterproof Twist-up Eyecups 325ft field of view at 1000 yards Case, strap, lens covers and cleaning cloth Specs ...

Aside from Earth, Mars is the most studied ecosystem by scientists today. With the process of collecting data from rovers and orbiting satelli...