Mid-range high power eyepieces like the 10mm 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.
The Explore Scientific 52° LER short focal length eyepiece is excellent flat-field multi-element ocular that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, this eyepiece offer incredible value in a very nice eyepiece.
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.
The kit includes:
|Optics material||optical glass|
|Optics coating||multicoated EMD (Enhanced Multilayer Deposition)|
|Optical design||6 elements in 3 groups|
|Apparent field of view, °||52|
|Focal length, mm||10|
|Field stop diameter, mm||9.1|
|Barrel diameter, in||1.25|
|Eyepiece barrel diameter, mm||31.7|
|Waterproof||yes, sealing ring, additional argon purge|
|Additionally||rubber foldable eyecup, filter thread|