Binorum Super Plössl 6mm 50° SPL 1.25″ Eyepiece
Enhanced Plössl Design for Superior Performance
The Super Plössl eyepiece design with a 50° field of view represents the next evolution of the classic Plössl configuration - suitable for every telescope. Super Plössl eyepieces are modern Plössl eyepieces with outstanding optical performance that surpass standard 4-element Plössls through the addition of a fifth optical element, delivering enhanced edge correction and improved contrast across the entire field of view.
Exceptional Optical Quality
These eyepieces are ideal for observing the Moon and planets, delivering performance that demanding observers expect. They are characterized by exceptional brightness and outstanding color rendition, so you can use them for other objects as well. The optical refinements in the Super Plössl design ensure that planetary cloud bands, lunar crater details, and surface features appear with natural colors and precise definition.
Advanced Optical Features
The lens edges of these Super Plössl eyepieces have been blackened to ensure good contrast and suppress internal reflections. Special FMC (Fully Multi-Coated) multi-layer coatings on all optical surfaces ensure excellent light transmission, image sharpness, and accurate color rendition. These premium coatings minimize light loss and ghosting, delivering maximum performance even when observing bright objects like the Moon or Venus.
Enhanced Viewing Comfort
Rubber fold-down eyecups protect against scattered light from the sides, maintaining image contrast even in less-than-ideal observing conditions. The eyecups can be folded down to accommodate eyeglass wearers or extended for comfortable eye positioning during extended planetary observation sessions.
Technical Specifications
- Focal length: 6mm
- Apparent field of view: 50°
- Barrel diameter: 1.25″ (31.7mm)
- Optical design: 5-element Super Plössl configuration
- Lens coatings: FMC (Fully Multi-Coated) on all surfaces
- Eye relief: Approximately 4.5mm
- Lens edge treatment: Blackened to reduce stray light and reflections
- Filter threads: Standard 1.25″ threads
- Housing: All-metal construction
- Eyecup: Rubber fold-down design
High Magnification for Detailed Planetary Views
The short 6mm focal length is specifically designed for high-magnification planetary and lunar observation. When paired with a 750mm focal length telescope, this eyepiece delivers 125x magnification - excellent for resolving fine details on Jupiter and Saturn. With a 1200mm telescope, you achieve 200x magnification, perfect for observing the Cassini Division in Saturn's rings, detailed Martian surface features during favorable oppositions, and intricate lunar crater systems.
Comprehensive Focal Length Range Available
The Super Plössl series offers a wide range of focal lengths to suit every observing need: 6mm, 6.4mm, 7.5mm, 8mm, 10mm, 12mm, 12.5mm, 15mm, 17mm, 18mm, 20mm, 25mm, 32mm, and 40mm. This comprehensive selection allows you to build a complete eyepiece set with optimal magnification steps for your telescope, ensuring you have the right tool for every observing scenario from wide-field star cluster viewing to high-resolution planetary work.
Optimal Use Cases
- High-resolution planetary observation - cloud belt details, polar caps, surface features
- Detailed lunar crater observation at high magnification
- Close double star separation and binary systems
- Globular cluster core resolution
- Small planetary nebulae observation
- High-magnification work when atmospheric conditions permit
Superior to Standard Plössl Design
The Super Plössl 5-element design offers several advantages over standard 4-element Plössls: improved edge sharpness, better color correction across the field, reduced internal reflections due to optimized element spacing, and enhanced contrast on low-contrast planetary features. While maintaining the proven optical formula that has made Plössl eyepieces popular for decades, the Super Plössl adds refinements that serious planetary observers appreciate.
Best Viewing Conditions
The high magnification provided by this 6mm eyepiece performs best under stable atmospheric conditions with good "seeing." On nights of excellent atmospheric stability, you'll be rewarded with stunning planetary details and crisp lunar features. This eyepiece is most effective with telescopes of 4 inches (100mm) aperture or larger, where the optics can support the high magnification while maintaining image brightness and resolution.
Compatible with Planetary Filters
The integrated filter threads allow you to enhance planetary observation with standard color filters. Use a #80A blue filter to increase contrast on Jupiter and Saturn, a #21 orange or #23A light red filter to enhance Mars surface features, or a moon filter to reduce glare when observing our natural satellite. The blackened lens edges and FMC coatings work synergistically with filters to maintain maximum contrast and color fidelity.
Professional-Grade Construction
Despite its affordable pricing, the Binorum Super Plössl 6mm features all-metal construction that ensures precision and durability. The barrel is precisely machined to fit snugly in telescope focusers without play or wobbling, critical for maintaining sharp focus at high magnifications. The robust build quality ensures this eyepiece will provide years of reliable service under regular use.
Why Choose Binorum Eyepieces
Binorum Super Plössl eyepieces represent exceptional value in premium astronomical optics. The 5-element optical design, combined with FMC coatings on all surfaces and blackened lens edges, delivers performance characteristics typically found only in significantly more expensive eyepieces. Each eyepiece undergoes rigorous quality control testing to ensure consistent optical performance and mechanical precision. The comprehensive focal length range allows observers to build a complete, matched eyepiece set for optimal performance across all magnification ranges. Binorum's commitment to quality manufacturing and optical excellence has earned recognition among amateur astronomers worldwide, providing professional-grade performance at accessible prices and making high-quality planetary observation available to enthusiasts at all experience levels.
