Compact 4mm Wide Angle Eyepiece for 1.25 Telescopes

The SVBONY 1.25" fully coated eyepiece is perfect for a wide range of astronomical observations. Designed for broad field lunar observations, medium-sized star clusters, and a wide range of cloudy nebulas and deep sky targets, this eyepiece offers high-quality performance.

New to stargazing and unsure of what you need? This eyepiece can help you make an educated decision. When selecting an eyepiece, it's important to consider the magnification capabilities of your telescope. The magnification equation is: Magnification = objective focal length / eyepiece focal length. Typically, you do not want to exceed 2x per mm of your telescope's diameter, or the images will become blurry. For example, if your telescope's objective diameter is 80mm, the maximum magnification should not exceed 160x. Researching the best magnification for the objects you wish to view is crucial.

The SVBONY 4mm Aspheric Eyepiece package includes: 1 x SVBONY 4mm Aspheric Eyepiece

This eyepiece features FMC (Fully Multi-Coated) glass optics, which increase light transmittance and enhance details on Jupiter, Saturn, Mars, and Venus. The lens edges are blackened, and the internal extinction thread reduces scattered light even further, providing exceptional image quality.

The eyepiece has a standard 1.25" (31.75mm) fitting diameter, allowing it to be used with any astronomical telescope equipped with a 1.25" focuser. Both ends of the eyepiece have dust caps to protect the lenses, and the caps are interchangeable for easy use and storage.

This 4mm eyepiece is perfect for observing a wide range of celestial objects, including the moon, planets, nebulae, star clusters, and deep sky targets. Its 62-degree field of view offers a wide, immersive viewing experience.

Specifications: - Focal Length: 0.16 inch / 4mm - Field of View: 62° - Fitting Diameter: Standard 1.25" (31.75mm) - Eye Lens Diameter: 0.39 inch / 10mm - Coating: Fully Coated, High-Definition - Optical System: Aspheric Eyepiece - Weight: 1.48 oz / 0.09 lb / 42g - Element: 3 Elements, 2 Groups

The SVBONY 4mm Aspheric Eyepiece is not only a practical tool for astronomical observation but also makes a great gift for birthdays, Christmas, or Halloween. Its high-quality design and performance make it a valuable addition to any stargazer's collection.

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