Cloud Break Optics

100º Series Eyepiece 5.5mm 2" (Ar-Purged) (EPWP10055-01)

100º Series Eyepiece 5.5mm 2" (Ar-Purged) (EPWP10055-01) - Main image
$209.99 $299.99 In stock

Category: Eyepieces

Description

Explore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 100° Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is close to the maximum for hyper-wide eyepiece design, objects are not only easier to locate, but for non-driven telescopes the object will stay in the field of view for a very long time before any adjustments need to be made.

Another great benefit of hyper-wide eyepieces is the 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.

Specifications

Item Number EPWP10055–01
Focal Length 5.5mm
Length 150mm
Width 56mm
Weight 21.6oz; 612g
Barrel Size 2.00
Eye Relief 10.5mm
Field Stop Diameter 9.6mm
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Customer Reviews (4.6 / 5 · 5 reviews)

Olivia ★★★★★

The eye relief is generous enough that I can wear my glasses comfortably while still taking in the entire massive field. The argon purging gives me peace of mind during those humid summer nights.

Violet I. ★★★★★

The 100-degree field of view is genuinely immersive, making my DSO observations feel like I'm floating in space. Focus is crisp edge-to-edge, even on my f/5 scope. The only thing I'd change is adding a bit more eye relief for eyeglass wearers.

Evelyn ★★★★★

Spent a clear night comparing this 5.5mm to my old 82-degree eyepiece, and the 100-degree field is a total game-changer—the view just swallows you up. The argon purging gives me peace of mind against dew, and the eye relief is comfortable even with glasses on.