Окуляр 1,25' Explore Scientific LER 52° 4,5 mm (AR)

High power eyepieces (e.g. 3mm to 10mm) are used not only for obvious observations of planets and double stars, but can be employed for bright, compact deep sky objects. Not only will the scale of an object like a planetary nebula or globular cluster be impressive as it fills the eyepiece FOV, but the background sky will be very dark as the contrast effect increases with added magnification, provided that the atmospheric seeing conditions are favorable enough to reveal a sharp image. The 4.5mm is a popular choice for a wide variety of telescopes, producing some of the highest magnification views that most astronomers will observe at.

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.

Features:

• 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

The kit includes:

• 52° eyepiece
• Dust covers
• Protective bag

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Specifications Type parfocal 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 4.5 Eyedistance, mm 15 Field stop diameter, mm 4.1 Barrel diameter, in 1.25 Eyepiece barrel diameter, mm 31.7 Waterproof yes, sealing ring, additional argon purge Additionally rubber foldable eyecup, filter thread

Марка	Explore Scientific
Гаранция, години	2
EAN	4007922057965
Размер на опаковката (Д x Ш x В), cm	14.5x11x10
Транспортно тегло, kg	0.38
Оптична схема	6 елемента в 3 групи
Диаметър на тръбата на окуляра, in	1,25'
Материал на оптиката	оптично стъкло
Покритие на лещите	многослойно покритие EMD
Фокусно разстояние, mm	4.5
Зрително поле, °	52
Разстояние от очите, mm	15
Подходящ за наблюдения, докато носите очила	yes
Диаметър на ограничителя на зрителното поле, mm	4.1
Резба на филтъра	yes
Потъмняване на страничните ръбове	yes
Парфокални	yes
Прочистен с аргон	yes
О-пръстен	yes
Водоустойчив	yes
Клас на защита от влага/проникване на вода	дълбочина на потапяне 1 m за до 30 минути
Чашка на окуляр	сгъваема, гума
Включени са защитни капачки	yes