Eyepiece, EXPLORE SCIENTIFIC 52° LER 30mm Ar

A 30mm focal length eyepiece produces a large exit pupil which floods your 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 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.

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.

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.

SPECIFICATIONS:

• Large eye distance, large field and great image sharpness

• Excellent viewing position for people with glasses

• Excellent field sharpness even with fast optics

• 52° apparent field of view

• Argon-purging prevents internal fogging, the sealing facilitates cleaning

• Patented EMD"-coating to maximize contrast

• Blackened lens edges to avoid reflexes

• All eyepieces of this series are parfocal

• Stainless steel barrel with conical security cutoff

• Dust covers and protective bag included

SCOPE OF DELIVERY:

• 52° Eyepiece

• Dust covers

• Protective bag

Technical Data

OPTICAL SPECIFICATIONS

• Focal length 30 mm

• Apparent field of view 52 degrees

GENERAL TECHNICAL DATA

• Eyepiece Barrel Diameter 31.7 mm

• Eyecups Rubber eyecups, foldable

• Eye relief 19.9 mm

• Extended warranty 10 years

DIMENSIONS & WEIGHTS

• Total length 82 mm

• Net weight (without access.) 200 g