ReviewsRack And Pinion Focuser Eyepiece Set

Explore Scientific FCD100 Series 127mm f/7.5 Aluminum Air-Spaced Triplet ED APO Refractor Telescope

  • Explore Scientific ED127 Classic White f/7.5 Air Spaced Triplet with Hoya FCD100 optics and Integrated Dew Shield.
  • 2.5" HEXagonal Rack and Pinion 10:1 two-speed Focuser Cradle Ring with Handle and Vixen Style Dovetail Plate.
  • Explore Finder Scope Base installed on scope.
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SVBONY SV106 Guide Scope 60mm Multi-Use Finder Scope Guide Scope with Helical Focuser F4 for SG4 QHY5II ZWO SG4 CCD Astronomical Telescope

  • this convenient feature means your field of potential guide stars will not rotate as focus is adjusted, further increasing ease of use.
  • For those nights when you don't plan to capture astrophotos exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25" eyepiece installed.
  • For example, inserting a 25 mm eyepiece creates a 9.6x60 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming.
  • The focuser boasts 8 mm of precise helical focus travel.
  • plus telescoping drawtube housing provides up to 35mm of additional back-travel if needed for your particular autoguider device.
  • a compression ring fitting keeps any inserted autoguider cameras or eyepieces free of pesky scratches.
  • The Multi-Use Guide Scope with Helical Focuser also features male T-threads on the focuser collar for secure threaded attachment of guide cameras equipped with female T-threads.
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Orion Observer 80ST 80mm Equatorial Refractor Telescope Kit

  • Telescope Kit includes extra value-packed accessories for a fun stargazing experience.
  • An ideal refractor telescope package for the observer on-the-go, the compact Observer 80ST packs a lot of performance into a petite telescope design.
  • The included EQ-1B equatorial mount and adjustable-height tripod allows smooth slow-motion movement to easily track objects in the sky.
  • Includes two 1.25" telescope eyepieces, red-dot aiming sight, smooth rack and pinion focuser, 90-degree mirror diagonal for comfortable viewing, and more!.
  • Value-packed telescope kit also includes a 2x Shorty Barlow, MoonMap 260, Orion Telescope Observer's Guide book, Star Target Planisphere, and RedBeam Mini LED keychain flashlight.
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OMAX 40X-2500X USB3 18MP Digital Lab Trinocular LED Compound Microscope with Aluminum Carrying Case

  • Total magnification: 40X-100X-250X-400X-1000X-2500X.
  • Eyepieces: wide field WF10X/18 and WF25X.
  • Objective: achromatic DIN 4X, 10X, 40X (spring),100X (spring, oil).
  • Head: 30 degrees inclined 360 degrees rotatable trinocular Siedentopf.
  • Interpupillary: hinge adjustment 1-7/8inch ~ 2-15/16inch (48mm ~ 75mm).
  • Diopter: adjustable on left eyepiece tube.
  • Nosepiece: revolving, quadruple, reversed.
  • Stage: X-Y mechanical stage with scales, range 3inch x 1-9/16inch (78mm x 40mm), dimension 5-1/2i....
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OMAX 40X-2500X Super Speed USB3 14MP Digital Compound Trinocular LED Lab Biological Microscope

  • Total magnification: 40X-100X-250X-400X-1000X-2500X.
  • Objectives: achromatic DIN 4X, 10X, 40X (S), 100X (S, Oil).
  • Viewing head: 45 degrees inclined 360 degrees swiveling trinocular.
  • Interpupillary distance: sliding adjustable 2-3/16inch ~ 2-15/16inch (55mm ~ 75mm).
  • Diopter: adjustable on both eyepiece tubes.
  • Stage: mechanical stain-resistant double layer, size: 5-1/2inch x 5-1/2inch (140mm x 140mm), translation range: 3inch x 2inch (....
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OMAX 40X-2000X USB3 5MP Digital Lab Trinocular LED Compound Microscope with Aluminum Carrying Case

  • Total magnification: 40X-80X-100X-200X-400X-800X-1000X-2000X.
  • Eyepieces: wide field WF10X/18 and WF20X.
  • Objective: achromatic DIN 4X, 10X, 40X (spring),100X (spring, oil).
  • Head: 30 degrees inclined 360 degrees rotatable trinocular siedentopf.
  • Interpupillary: hinge adjustment 1-7/8inch ~ 2-15/16inch (48mm ~ 75mm).
  • Diopter: adjustable on left eyepiece tube.
  • Nosepiece: revolving, quadruple, reversed.
  • Stage: X-Y mechanical stage with scales, range 3inch x 1-9/16inch (78m....
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OMAX 40X-2500X Full Size Lab Digital Trinocular Compound LED Microscope with 14MP USB Camera and 3D Mechanical Stage

  • Total magnification: 40X-100X-250X-400X-1000X-2500X.
  • Objectives: achromatic DIN 4X, 10X, 40X (S), 100X (S, Oil).
  • Viewing head: 45 degrees inclined 360 degrees swiveling trinocular.
  • Interpupillary distance: sliding adjustable 2-3/16inch ~ 2-15/16inch (55mm ~ 75mm).
  • Diopter: adjustable on both eyepiece tubes.
  • Stage: mechanical stain-resistant double layer, size: 5-1/2inch x 5-1/2inch (140mm x 140mm), translation range: 3inch x 2inch (....
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Astromania Off-Axis Guider with Micro-Focusing - for Successful Astronomy Photos Without A Guide Scope

  • An off-axis guider is a brilliant invention. This device sits in the 2-inch focuser in front of the camera. A small prism directs a little light from the telescope into a separate tube - where your guide camera or crosshair eyepiece is attached. This makes it possible to instantly correcting any tracking errors during the extended period over which your camera is exposing the image - for perfectly round stars!.
  • The advantages: 1) lets you take beautiful astronomy photos with round stars. 2) for refractors, SCs, MAKs and RC telescopes. 3) off-axis guider only 24mm in overall length - very compact. 4) robust yet light. 5) 45mm optical transmission - full illumination, even with large chips. 6) micro-focusing - especially smooth helical focusing with 0.05mm accuracy. 7) 75mm of back focus..
  • The connections: Easy to adapt - the Astromania off-axis guider has an M48 thread on the telescope side and an additional socket for 2 inch eyepieces. The accessory has three screws and a flat M48 adapter for connecting your camera. The advantage - you can rotate your camera at any time and find the optimum orientation for the astronomical object you are exposing..
  • Exact micro-focusing with 10mm travel - for auto-guider or crosshair eyepiece: A small prism directs ....
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Crabby 6'' Inch 30sec Diffraction Spectrometer to Measure Prism Refractive Index

  • Adjustable Prism table marked with grooved lines Main graduated scale of 150mm (6") Double ending verniers reading to 1 min to 30 Secs Arc depending on model Telescope mounted on movable pillar having fine adjustment..
  • Collarimeter mounted on fixed pillar with objective Eyepiece & Rack Pinion Fine Focusing..
  • Spectrometer with 6" Circle and Adjustable Prism table marked with grooved lines..
  • Telescope mounted on movable pillar having fine adjustment and Double ending verniers reading 30 Secs. Arc Collarimeter mounted on fixed pillar with objective..
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SVBONY SV154 Telescope Eyepiece 2 inch Super Wide Angle Eyepiece 70 Degree 26mm Telescope Accessory SWA Eyepiece for Astronomy Telescope (2 in)

  • SVBONY 26mm super-wide angle 2" eyepiece bring you an amazing observation experience.
  • Super-wide 70-Degree apparent field of view gives you that unforgettable lost in space feeling.
  • 3groups made of high index glass deliver sharp.
  • the SV154 with sleek black barrel with safety undercut to reduce the possibility of the eyepiece slipping out of the focuser or diagonal.
  • This SV154 eyepiece is threaded to accept standard 2" filters.
  • includes a rubber eye cup for comfortable viewing and is fully multi-coated.
  • SV154 super-wide angle eyepieces come with a removable and foldable soft silicone rubber eye cup for the comfort of the observer.
  • Suitable for anyone wearing glasses and not wearing glasses.
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1.25 90 Degree Diagonal Adapter Erecting Image Positive Prism Optic Mirror for Telescope Eyepiece Accessories

  • Standard 1.25in diameter fits for 1.25in eyepiece and telescope focuser..
  • Designed for refractor and catadioptric telescopes, and not for reflector telescope..
  • Wide 90 degree angle allows you to view correct image from refractor telescope stand and just look down with a comfortable angle..
  • Easy to install and use. Just insert into 1.25in telescope at the silver end,the other end fix 1.25in eyepiece by the screw..
  • The body is constructed of high quality materials, sturdy and not easy to damage..
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