1.25" 68° Ultra Wide Angle 20mm Relief FMC Eyepiece for Astronomical Telescopes

Description

Folding Down Rubber Eyecup
Folding down rubber eyecup provides comfortable viewing for people with or without glasses; bayonet mount can also block stray light to increase the brightness of imagine.
Two Dust Covers
Comes with two sturdy dust cover protect the eyepiece from dust and moisture; convenient to carry and storage.
Fully Metal Construction
Machined aluminum and stainless steel solid construction, durable and premium feel.
Perfect Images
Constructed to the highest quality standards, these eyepiece is packed with high-quality optics(FMC), including internally blackened barrel that minimize distortion and control optical reflection to create crisp and colorful images.Meanwhile, SVBONY 68 degree ultra wide telescope eyepiece provide you a extremely large field of vision.
Plastic and rubber cap
Comes with sturdy plastic and rubber cap protect the eyepiece from dust and moisture which together with fully metal is durable
Soft rubber eye guard
Fold down soft rubber eye guard is more comfortable for eyeglass wearers
Features:
FMC 68-Degree Ultra Wide long eye Relief Eyepiece
Standard 1.25" Inch Astronomy Telescope 4 Piece Eyepiece Kit
Super Wide 68 Degree apparent field offers expansive views of the moon, star clusters, and the Milky Way
Multi-element design delivers sharp images with good color correction and contrast
Package Includes （6mm)
1.25" 68-Degree Ultra Wide 20mm Eyepiece
Brand
Svbony
Svbony
Svbony
Svbony
Focal Length
6mm
9mm
15mm
20mm
Barrel Size
1.25" (31.7mm)
1.25" (31.7mm)
1.25" (31.7mm)
1.25" (31.7mm)
Apparent Field of View
68 Degree
68 Degree
68 Degree
68 Degree
Coating
Fully Multi-Coated
Fully Multi-Coated
Fully Multi-Coated
Fully Multi-Coated
Eye Relief
17mm
17mm
17mm
17mm
Structure Design
5-elements in 3 groups
6-elements in 4 groups
4-elements in 3 groups
5-elements in 3 groups
Lens material
Optical Glass Lenses
Optical Glass Lenses
Optical Glass Lenses
Optical Glass Lenses
Body Material
Fully Metal
Fully Metal
Fully Metal
Fully Metal
Filter Threads
Standard 1.25" Filter Thread
Standard 1.25" Filter Thread
Standard 1.25" Filter Thread
Standard 1.25" Filter Thread
Rubber Eye Guard
Yes
Yes
Yes
Yes
Net Weight
133g
141g
116g
126g
about svbony
131mm Large Optical Dual Separation Doublet Lens Focal Length 1200mm 700mm
DIY Refractor Telescope Objective Achromatic
Guidscope
Lentes
Dual  Separation Achromatic Lens
Material: Optical Glass
Lens Diameter:131mm
Focal Length:700mm( Green Film)  1200mm (Blue Film)
Astronomical telescope objective lens with multilayer blue / Green film
Combined image quality 1 / 4-1 / 8
Diameter tolerance + 0 / -0.12 mm
Center thickness tolerance ± 0.2mm
Focal length tolerance ± 0.1%
Finish 60/40
Off-centre 1 '
Remarks: two-piece refractive double separation objective lens group;
Used for astronomical telescope objectives, finder and collimation objective Lens
Green Film:  Four-sided multilayer wideband film (400-700nm)
Delivery details
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2. Items will be shipped within 1-10 business days on payment received.
3. Delivery time depends on destination and other factors, it may takes up to 20 business days.
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