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Features of the Explore Scientific 52° 6.5mm Waterproof Eyepiece:
Mid-range high power eyepieces like the 6.5mm are instrumental when transitioning through magnifications to observe an object until it is best seen. There are several aspects that have to come together when observing at high powers: good-to-perfect atmospheric seeing conditions; telescope optics that are collimated; a telescope that is acclimated to the ambient temperature; brightness and size of the object being observed are just a few aspects to consider. The observing challenges are high, but the rewards of observing at high power with razor sharp views are unforgettable.
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 Plossol.
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.
|226.8 grams; 8 oz.
|1.25" O.D. / Double Taper
|Field Stop Diameter
|EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
|Lens Elements/ Groups
|6 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.
Add'l 52° Eyepieces
- Waterproof design for all-weather use
- 52° apparent field of view for wide-angle viewing
- Multi-coated optics for bright and sharp images
- Compatible with most telescopes
- 6.5mm focal length for high magnification
- Comes with a carrying case for easy transport
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