Telescopes & Astronomy

• With fully multi-coated 8-element optics, the 20mm focal length telescope eyepiece will amaze you with true-color views of the night sky
• Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass to eliminate chromatic aberrations for exceptionally clear views
• All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
• Long 20mm eye relief and large 30mm-diameter eye lens lets eyeglass wearers enjoy the view comfortably without removing glasses
• The 20mm LHD eyepiece features a tapered 2" barrel which is threaded for use with 2" eyepiece filters

• This 4mm focal length, 8-element telescope eyepiece will amaze you with vivid, panoramic views of the night sky
• Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass for exceptional control of chromatic aberrations to provide true-color views with outstanding clarity
• All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
• Long 20mm eye relief lets eyeglass wearers enjoy the view comfortably without removing glasses
• The fully multi-coated 4mm LHD eyepiece features a tapered 1.25" barrel which is threaded for use with 1.25" eyepiece filters

• Bracket couples Orion AccuFocus Electronic Focus Driver to the Orion 2" Low-Profile Dual Speed Crayford Focuser (model #8881)
• Allows motorized focusing of many telescopes with the Orion AccuFocus Electronic Focus Driver
• Sturdy bracket made of anodized aluminum
• Bracket only - AccuFocus Electronic Focuser and telescopes sold separately
• Not compatible with Premium Low-Profile Dual-Speed Crayford Focuser model #13030

• Attach the Orion StarSeek Telescope Control Cable to your GoTo telescope to turn your iPhone, iPad, or iPod Touch into a cutting-edge GoTo hand controller
• Lets you use the beautifully detailed star chart interface of Orion's StarSeek astronomy apps to move your telescope effortlessly around the night sky from your handheld device
• Apple-approved, 3.5' long serial cable offers the simplest, most affordable way to control your computerized telescope with an iPhone, iPad, or iPod Touch
• Requires iOS 4 or later on your Apple device and version 3.0 or later of the Orion StarSeek (Std, Pro, or Max) astronomy apps
• Compatible with all computerized Orion GoTo telescope mounts as well as many other brands

A T-ring converts a camera's mount to a standard T-thread. All camera adapters, including Celestron and Meade T-adapters and universal camera adapters, will fit this T-thread. Call for advice if your camera is not listed.

• Rigid, 16" long anodized aluminum bar used for coupling guide scope rings to an astrophotography telescope
• Attach guide scope rings to this mounting bar, then attach bar in piggyback orientation to imaging telescope
• Multiple holes along length of mounting bar allow rings to be positioned for long-tube or short-tube guide scopes
• Pre-drilled holes allow easy attachment to Orion SkyView Pro, Sirius, and Atlas mounted telescopes with tube rings
• Astrophotography telescope must be equipped with tube rings in order to attach guide scope ring mounting bar

• 1.25", 90-degree mirror diagonal features sophisticated dielectric coatings with highly efficient 99% reflectivity for peak performance
• Twist-tight clamping mechanism grips inserted eyepieces more securely than typical thumbscrew-equipped diagonals - without scratching!
• Durable dielectric mirror coatings provide higher reflectivity for maximum brightness and contrast
• Machined and anodized aluminum housing features machine-threaded glare baffles to eliminate glare for great performance
• Nosepiece barrel threaded to accept 1.25" filters

• High-performance observational eyepiece filter markedly improves views of Mars
• Fully-coated Mars filter increases contrast to bring out subtle details on the disc of the red planet
• When using the Mars filter on a clear, dark evening you'll see polar ice cap detail, subtle mare shadings, duststorm and cloud activity
• Eyepiece filter dramatically improves views of Mars even in smaller astronomical telescopes
• Designed to fit 1.25" telescope eyepieces with filter threads. Metal filter cell construction.

• Reduce the amount of time spent waiting for your big GoTo Dobsonian to reach thermal equilibrium with the Orion Three-Fan Cooling System
• Three-fan set custom designed to fit the Orion XX14i IntelliScope, XX14g GoTo and XX16g GoTo Dobsonian primary mirror cells
• Enjoy optimized visual performance quickly
• Each fan boasts 33.4 CFM (cubic foot per minute) air flow to help significantly accelerate cooling of your Dobsonian telescope's optics
• Quiet fans operate without vibrations