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Top-Quality Astronomy Eyepiece
Often considered the perfect mid-range focal length for most amateur telescopes, the 20mm on the ED127 at f7.5 produces a 1 degree true field of view. Perfect for the Messier Marathon, or running down the Herschel Catalog. The 20mm 52° Series is also a good selection for most binoviewers with its relatively small size and magnification range.
Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 52° Series eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossl.
Another great benefit of these eyepieces is the excellent contrast and ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.
|181.4 grams; 6.4 oz.
|1.25" O.D. / Double Taper
|Field Stop Diameter:
|EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
|Lens Elements/ Groups
|5 Elements in 3 Groups; Edge Blackened
|Fits Standard 1.25-inch Dia. Thread in Filters (1.125-inches x 42 TPI)
|O-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes
|Removable Flip-Down Style Soft Silicone Rubber
|Slide-on Top and Bottom
|Optical Glass; Aluminum; Steel; Silicone Rubber
|Laser Engraved: Focal Length; Series; Serial Number; Brand
Limited USA One Year Warranty when product is registered within 60 days of purchase.
The Explore Scientific 20mm 52° Series Waterproof Eyepiece is a top-quality eyepiece designed for astronomy enthusiasts. This eyepiece is made from high-quality materials and is built to last. It features a 52° field of view, which is perfect for observing deep sky objects and planets. With a focal length of 20mm, this eyepiece offers medium magnification, making it ideal for observing star clusters and other deep sky objects.
One of the standout features of this eyepiece is its waterproof design. This means that it can be used in all weather conditions without any issues. The eyepiece is also fog-proof, which means that you won't have to worry about any condensation affecting your view. This makes it perfect for use in humid climates or on dewy nights.
The Explore Scientific 20mm 52° Series Waterproof Eyepiece is compatible with a wide range of telescopes. It has a standard 1.25-inch barrel size, which means that it will fit most telescopes that accept this size of eyepiece. This makes it a versatile eyepiece that you can use with a range of different telescopes.
Overall, the Explore Scientific 20mm 52° Series Waterproof Eyepiece is a top-quality eyepiece that is perfect for astronomy enthusiasts. It offers excellent performance, a waterproof design, and is compatible with a wide range of telescopes. If you're looking for an eyepiece that will help you get the most out of your telescope, this is definitely one to consider.
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