Call Us: 877.623.4021 | Free USA Shipping EXCEPT all Astrodon products and some other bulky and/or heavy products.|support@opticalstructures.com

Explore Scientific

||Explore Scientific

Explore Scientific brand products

  • Explore Scientific 14mm 100° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 14.5mm of eye relief; Weighs 29.4 ozs./ 1.8 lbs.
  • Explore Scientific 20mm 100° Series Nitrogen-Purged Waterproof Eyepiece; EMD Coatings; 2"; 14.5mm of eye relief; Weighs 38.1 ozs.
  • Explore Scientific 25mm 100° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 14.5mm of eye relief; Weighs 41.5 ozs./ 2.6 lbs.
  • Explore Scientific 30mm 100° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 3"; 19mm of eye relief; Weighs 82.9 ozs./ 5.18 lbs.
  • Explore Scientific 5.5mm 100° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 10.5mm of eye relief; Weighs 21.6 ozs.
  • Explore Scientific 9mm 100° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 12.5mm of eye relief; Weighs 21.2 ozs.
  • Explore Scientific 9mm 120° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 12.5mm of eye relief; Weighs 21.2 ozs./ 1.3 lbs.
  • Explore Scientific 68° 16mm, 24mm, 34mm Argon-Purged Waterproof Eyepiece Set with soft sided case.
  • Explore Scientific 2" 99% reflectivity Diagonal
  • A curved focal plane is an inherent feature in most telescope designs and is nothing to note for general stargazers. But, for astrophotographers, the consequences of that same curved plane can ruin hours of patient imaging. Designed for refracting telescopes, Explore Scientific’s Field Flattener can tackle the edge-of-field aberrations caused by this necessary curvature to ensure your long night at the eyepiece will not be in vain. This accessory offers fully multi-coated optics and slides securely into the 2” eyepiece holder.
  • A curved focal plane is an inherent feature in most telescope designs and is nothing to note for general stargazers. But, for astrophotographers, the consequences of that same curved plane can ruin hours of patient imaging. Designed for refracting telescopes, Explore Scientific’s Field Flattener can tackle the edge-of-field aberrations caused by this necessary curvature to ensure your long night at the eyepiece will not be in vain. This accessory offers fully multi-coated optics and slides securely into the 2” eyepiece holder. This Flattener includes an ULTRA-THIN Canon T-mount for Canon EOS Digital Cameras.
  • AA curved focal plane is an inherent feature in most telescope designs and is nothing to note for general stargazers. But, for astrophotographers, the consequences of that same curved plane can ruin hours of patient imaging. Designed for refracting telescopes, Explore Scientific’s Field Flattener can tackle the edge-of-field aberrations caused by this necessary curvature to ensure your long night at the eyepiece will not be in vain. This accessory offers fully multi-coated optics and slides securely into the 2” eyepiece holder. This Flattener includes an ULTRA-THIN Nikon T-mount for Nikon Cameras.
  • A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we make focal extenders in 2X, 3X and 5x models, so there is something for every style of telescope.
  • The Explore Scientific 2X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters. Fully EMD-Coated on all air-to-air lens surfaces, with all lens elements edge-blackened to produce superior contrast, this focal extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces such as the 30mm 82 Degree Series Waterproof Eyepiece have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we also make 1.25-inch O.D. Focal Extenders in 2X, 3X and 5x models, so there is something for every style of telescope.
  • Explore Scientific 3" 99% reflectivity Diagonal
  • Explore Scientific’s 3” Field Flattener .7x Focal Reducer is a multi-faceted accessory designed to enhance your astrophotography experiences. As a field flattener, this piece addresses the edge-of-field aberrations caused by curved focal planes to ensure your night at the eyepiece will result in crisp, true images. As a focal reducer, this device will reduce your f-ratio by .7, which results in a wider field of view, brighter images and less exposure time. Recommended for our 127mm and 152mm refracting telescopes, this field flattener/focal reducer boasts fully multi-coated optics and comes with 2 adapters to accommodate different focuser sizes. While technically this was designed for the F/8 system, through user experiences and our subsequent testing we have concluded that our 3" Flattener / Reducer performs very well with our F/7.5 refractors.
  • A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we make focal extenders in 2X, 3X and 5x models, so there is something for every style of telescope.
  • The Explore Scientific 3X Focal Extender (2.0-inch O.D.), accepts both 1.25-inch O.D. and 2.0-inch O.D. format eyepieces and camera adapters. Fully EMD-Coated on all air-to-air lens surfaces, with all lens elements edge-blackened to produce superior contrast, this focal extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces such as the 30mm 82 Degree Series Waterproof Eyepiece have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we also make 1.25-inch O.D. Focal Extenders in 2X, 3X and 5x models, so there is something for every style of telescope.
  • Explore Scientific 5.5mm, 14mm, 26mm and 32mm Series 62° Argon-Purged Waterproof Eyepiece Set with soft case
  • Explore Scientific 100° 5.5mm, 9mm, 14mm Argon-Purged Waterproof Eyepiece Set with soft sided case.
  • A good Focal Extender adds some real versatility to your telescope accessory line-up. First of all, it allows you to increase the magnification of any eyepiece with the same barrel size that you already own. In other words, 3 eyepieces offer 6 magnification choices with the addition of a focal extender. Secondly, most of the time, lower magnification eyepieces have better eye relief than higher power models. When using a focal extender to increase your magnification, you get to enjoy the generous eye relief of the lower power eyepiece, and that's quite a bonus, especially for eyeglass wearers or for those with fast telescopes who can really push high magnification eyepieces. Remember, we make focal extenders in 2X, 3X and 5x models, so there is something for every style of telescope.
  • Explore Scientific 14mm 62° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 10.4mm of eye relief; Weighs 3.5 ozs.
  • Explore Scientific 20mm 62° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 14.8mm of eye relief; Weighs 5.0 ozs.
  • Explore Scientific 26mm 62° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 19.3mm of eye relief; Weighs 8.2 ozs.
  • Explore Scientific 32mm 62° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 22.2mm of eye relief; Weighs 14.8 ozs.
  • Explore Scientific 40mm 62° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 28.2mm of eye relief; Weighs 23.6 ozs.
  • Explore Scientific 16mm 68° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 11.9mm of eye relief; Weighs 5.5 ozs.
  • Explore Scientific 9mm 62° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 12.6mm of eye relief
  • Explore Scientific 16mm 68° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 11.9mm of eye relief; Weighs 5.5 ozs.
  • Explore Scientific 20mm 68° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 15.3mm of eye relief; Weighs 8.7 ozs.
  • Explore Scientific 24mm 68° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 18.4mm of eye relief; Weighs 11.6 ozs.
  • Explore Scientific 28mm 68° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 21.6mm of eye relief; Weighs 16.1 ozs.
  • Explore Scientific 34mm 68° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 26.4mm of eye relief; Weighs 24.1 ozs.
  • Explore Scientific 40mm 68° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 31mm of eye relief; Weighs 35.2 ozs.
  • Explore Scientific 14mm 82° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 15.6mm of eye relief; Weighs 9.0 ozs.
  • Explore Scientific 18mm 82° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 13mm of eye relief; Weighs 13.7 ozs.
  • Explore Scientific 24mm 82° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 17.5mm of eye relief; Weighs 24.8 ozs.
  • Explore Scientific 30mm 82° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 22mm of eye relief; Weighs 35.5 ozs.
  • Explore Scientific 4.7mm 82° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 13.6mm of eye relief; Weighs 7.5 ozs.
  • Explore Scientific 6.7mm 82° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 15.7mm of eye relief; Weighs 8.0 ozs.
  • Explore Scientific 8.8mm 82° Series Argon-Purged Waterproof Eyepiece; EMD Coatings; 1.25"; 15.6mm of eye relief; Weighs 8.9 ozs.
  • With its northern and southern polar reference markings, Explore Scientific’s 8x50 Illuminated Polar Finder Scope with NEW long battery life Illuminator (FNDRILLUM-02) allows for quick and precise polar alignments with any equatorial mount. The deep red illumination can be controlled by the variable brightness knob, which also serves as the illuminator's on/off switch. This finder features a 90° eyepiece, erect image viewing and a 7° field of view. It also offers precision focus of both the main objective and the eyepiece reticle.
  • Explore Scientific 12mm 92° Series Long Eye Relief Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 19.9mm of eye relief; Weighs 26 ozs.
  • Explore Scientific 17mm 92° Series Long Eye Relief Argon-Purged Waterproof Eyepiece; EMD Coatings; 2"; 20.02mm of eye relief; Weighs 33 ozs.
  • Explore Scientific’s 50mm (2”) T2 Camera Adapter is perfect for all DSLR cameras to attach to any telescope with a 2-inch or larger focuser. The thread allows any camera specific T-Mount to attach.
  • Explore Scientific Adapter to allow the use of the FFFR507X-00 3" 0.7x Corrector on the 2.5" Hex focuser
  • This Finder Scope Base is specifically designed to allow you to secure one of Explore Scientific’s high-quality finder scopes to the telescope of your choice. The easy-to-install base is sturdy and comes with reliable mounting screws.
  • EXPLORE SCIENTIFIC CF 102MM F/7 TRIPLET

    The ED 102 mm Carbon Fiber Air-Spaced Triplet APO refractor from Explore Scientific with a f/7 focal ratio delivers exceptional image clarity and color making it a perfect choice for the observer and imager alike. Striking a perfect compromise between portability and aperture, this scope offers a healthy 4-inches of light-gathering aperture and true diffraction-limited optics. At this objective, the 102 mm performs well in lunar, planetary and deep sky viewing scenarios. Offering an air-spaced triplet HOYA ED glass optical design which is virtually free of any chromatic aberrations, the image is bright and high in contrast. Proprietary EMD enhanced multi-layer coatings on all optical surfaces further enhance the optics' native performance. Striking a happy medium with a f/7 focal ratio, color and contrast are optimized without sacrificing exposure time. With a carbon fiber optical tube, the Explore Scientific 102 mm maintains a lightweight and is very temperature stable. Unlike aluminum and steel tubes which shrink and expand with temperature changes, a carbon fiber tube will eliminate focus changes. A push-pull collimation cell ensures that your scope is always as sharp as possible, and a two-speed precision focuser will help you bring those planets and star clusters into tack sharp focus.
  • From our Moon’s chiseled craters to Jupiter’s orderly cloud belts to the blue-white stars of the Orion Nebula popping against the complex misty cloud they call home, Explore Scientific’s Carbon Fiber 127mm Apochromatic Refractor can open up a treasure trove of night sky treats. A nice compromise between portability and aperture, this versatile high-end telescope offers true diffraction-limited optics and has an objective lens size that performs well in lunar, planetary and deep sky viewing situations. Featuring an air-spaced triplet optical design that virtually eliminates chromatic aberrations, this telescope generates brilliant high-contrast images by combining genuine HOYA extra-low dispersion (ED) glass and proprietary EMD enhanced multi-layer coatings on all optical surfaces. Its carbon fiber optical tube assembly encourages use by reducing weight and eliminates focus change attributed to shrinking or expansion caused by temperature fluctuations. Includes the 2" 99% reflective diagonal and the cradle rings.