Explore Scientific 52° LER Telescope Eyepiece 30mm Ar with high end EMD-Coating

• Large eye distance and great image sharpness. Excellent viewing position for people with glasses
• Excellent field sharpness even with fast optics. 52° apparent field of view
• Patented EMD-coating to maximize contrast. Blackened lens edges to avoid reflexes
• Argon-purging prevents internal fogging, the sealing facilitates cleaning. Stainless steel barrel with conical security cut-off. Dust covers and protective bag included
• Eyepiece plug diameter: 1, 25"

Loved by deep sky observers, a 30mm focal length eyepiece produces a large exit pupil which floods your dilated eye with light, which is needed to see faint galaxies and nebulae. Low power eyepieces are very important to observers for a variety of reasons: Their wide true field of view make object location and pointing far easier. Many deep sky objects are large and are best viewed at the lowest magnifications your telescope/eyepiece combination can achieve. When seeing conditions are poor, objects will often still look sharp at low powers. Comfort, Quality, Value. The Explore Scientific 52° LER Series mid-range focal length 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 Plods. These eyepieces are the choice for observers wearing glasses - with excellent performance and durability. The rubber inlet and the foldable eyecups make handling and using in the field easy. The patented EMD"-coating produces high contrast images and prevents reflexes and ghosting. The argon purging effectively prevents internal fogging, and you don´t have to deal with dirt, fungus or cleansing fluids getting between the lenses. The eyepieces are sealed - this makes sure you will be able to enjoy these eyepieces for many years to come.