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Svbony SV131 1.25" Plossl Eyepiece (6/12/17/25/40mm)
SVBONY SV131 6mm Plössl Eyepiece - 1.25"
SVBONY SV131 6mm Plössl Eyepiece - 1.25"
SVBONY SV131 6mm Plössl Eyepiece - 1.25"
SVBONY SV131 6mm Plössl Eyepiece - 1.25"
SVBONY SV131 6mm Plössl Eyepiece - 1.25"
SVBONY SV131 6mm Plössl Eyepiece - 1.25"
Svbony SV131 1.25" Plossl Eyepiece (6/12/17/25/40mm)

SVBONY SV131 6mm Plössl Eyepiece - 1.25"

by SVBONY
SKU SV-W9101B
CA$19.00 - CA$19.00
CA$19.00
CA$19.00 - CA$19.00
CA$19.00
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  • 6mm Focal Length
  • Classic 4-Element, 2-Group Plössl Optical Design
  • 1.25" Barrel Diameter Fits Standard Focusers
  • Fully Multi-Coated (FMC) Optics for Clear Views
  • Rubber Anti-Slip Ring for a Secure Grip
  • Standard M28.5*0.6 Filter Threads
2 in stock
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Svbony SV131 1.25" Plossl Eyepiece 6mm

    The Svbony SV131 1.25" Plössl Eyepiece series offers a significant upgrade over standard kit eyepieces, featuring a classic 4-element, 2-group optical design in a 6mm focal length. With standard M28.5*0.6 threads for 1.25" filters, this eyepiece is built for comfortable, high-contrast views of a wide range of celestial objects.

    Classic 4-Element Plössl Optics with Full Multi-Coatings

    The SV131 series adheres to the time-tested 4-element, 2-group Plössl design, known for delivering sharp, well-corrected images. Svbony enhances this design with True FMC (Fully Multi-Coated) optics, which increases light transmission and reduces internal reflections for brighter, higher-contrast views. The lens edges are also blackened to further minimize stray light and improve image clarity, making them effective for observing faint deep-sky objects.

    Durable All-Metal Build with M28.5*0.6 Filter Threads

    Unlike many eyepieces included with beginner telescopes, the SV131 features a full-metal housing with a chrome-plated 1.25" barrel for durability and a secure fit in your focuser. The barrel is threaded with the standard M28.5*0.6 pitch, allowing you to easily attach any 1.25" planetary, nebula, or polarizing filter. The interior of the housing is matted to prevent internal reflections from degrading the image.

    Eye Relief at 6mm

    As in any Plössl, eye relief shrinks with focal length, so the 6mm has short eye relief. Eyeglass wearers may need to remove their glasses to see the full field.

    Svbony SV131 vs. Standard Kit Eyepieces: A Worthwhile Upgrade

    If your telescope came with basic Kellner or Huygens eyepieces, the Svbony SV131 Plössl series represents a clear step up in optical and build quality without a premium price tag. The key differences are immediately noticeable at the eyepiece.

    • Optical Coatings: Most kit eyepieces are only single-coated or partially coated, leading to dimmer views and more glare. The SV131's Fully Multi-Coated optics deliver visibly brighter and higher-contrast images.
    • Build Materials: The all-metal construction of the SV131 is more robust than the plastic bodies of many bundled eyepieces, ensuring longevity and a more solid feel.
    • Internal Baffling: The matte blackened interior and lens edges in the SV131 provide better stray light control, resulting in a darker sky background and making it easier to see faint details.

  • Which Svbony SV131 focal length is best for viewing Saturn with my 6" f/8 reflector?

    For high-power planetary viewing, the 6mm Svbony SV131 is an excellent choice. In a 6" f/8 telescope (1200mm focal length), it will provide 200x magnification (1200mm / 6mm), which is ideal for resolving details like the Cassini Division in Saturn's rings or cloud bands on Jupiter under good seeing conditions.

    How much magnification does the 6mm Svbony SV131 give?

    Magnification equals your telescope's focal length divided by 6mm: about 67x in a 400mm refractor, 150x in a 900mm telescope and 200x in a 1200mm reflector, for close views of the Moon, planets and double stars.

    What does the 4-element, 2-group design of the SV131 Plössl mean for my views?

    This is the classic Plössl optical formula, consisting of two cemented doublet lenses. It is highly regarded for its excellent on-axis sharpness, good color correction, and high light transmission due to the low number of glass-to-air surfaces. It provides a clean, clear view that is a significant improvement over simpler 2- or 3-element eyepiece designs.

    Is the 6mm SV131 Plössl comfortable for eyeglass wearers?

    Not usually. Plössl eye relief is roughly 0.7 to 0.8 times the focal length, so the 6mm has short eye relief and most eyeglass wearers will need to remove their glasses to see the full field.

    How do I attach a 1.25" filter to the Svbony SV131 eyepiece?

    The bottom of the silver 1.25" barrel on every Svbony SV131 eyepiece is threaded with standard M28.5*0.6 threads. You can simply screw any standard 1.25" astronomy filter, such as a moon filter or a light pollution filter, directly into these threads.

    What are the benefits of Fully Multi-Coated (FMC) optics on the SV131?

    Fully Multi-Coated (FMC) means that all glass-to-air surfaces have been coated with multiple layers of anti-reflective material. This dramatically increases light transmission to your eye and reduces glare and ghosting from internal reflections. The result is a brighter, sharper, and higher-contrast image compared to eyepieces with single or partial coatings.

  • Focal Lengths 6mm
    Barrel Size 1.25"
    Optical Design 4-Element, 2-Group Plössl
    Coatings Fully Multi-Coated (FMC)
    Filter Threads M28.5 x 0.6 (Standard for 1.25" filters)
    Lens Edge Blackening Yes
    Housing Material All-metal
    Focal Length 6 mm

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  • Svbony 1-Year Warranty