Sky-Watcher UltraWide Eyepiece - 6mm

This Sky-Watcher 6mm Ultra-Wide Angle, Multi-Coated, Long Eye Relief eyepiece offers a generous 66...

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eBaySky-Watcher 6mm Ultra Wide Eyepiece 20615
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Wex Photo VideoSky-Watcher 6mm UltraWide Eyepiece - 66° Field of View - Long Eye Relief
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Product Information

Full details

This Sky-Watcher 6mm Ultra-Wide Angle eyepiece is designed for amateur astronomers seeking a wider field of view and comfortable viewing. Its primary benefit is delivering crisp, sharp images across a broad 66º field, enhancing celestial observation. A potential consideration is that the 6mm focal length is best suited for higher magnification targets, requiring a compatible telescope for optimal performance.

All features

BrandSky-Watcher

Extended Product Information

FAQs

What is the main advantage of a 66º field of view?

A 66º field of view provides a wider perspective of the night sky compared to standard eyepieces, making it easier to locate and track celestial objects and offering a more immersive viewing experience.

Is this eyepiece suitable for deep-sky objects?

While primarily designed for high-magnification planetary and lunar viewing, the wide field can aid in locating brighter deep-sky objects within star fields. However, very faint or diffuse objects may be better viewed with eyepieces offering lower magnification and wider fields.

How does the long eye relief benefit users?

The 14.8mm eye relief allows observers to view the entire field of view comfortably without needing to place their eye very close to the lens. This is especially beneficial for eyeglass wearers and reduces eye strain during long observation sessions.

How do I clean the eyepiece lenses?

Gently remove dust with a lens brush or air blower. For smudges, use a dedicated optical lens cleaning solution and a clean microfiber cloth, wiping gently from the center outwards.

What size barrel does this eyepiece have?

This eyepiece has a standard 1.25-inch barrel, making it compatible with most astronomical telescopes that accept this common eyepiece size.

Are rubber eyeguards included?

Yes, rubber eyeguards are included. They can be folded down for eyeglass wearers or extended for maximum comfort and light blocking for all users.

What types of celestial objects are best viewed with this 6mm eyepiece?

This 6mm eyepiece is ideal for observing detailed features on planets like Jupiter and Saturn, as well as high-resolution views of the Moon's surface, due to its high magnification.

Troubleshooting

Image is blurry or out of focus

Ensure the eyepiece is fully seated in the focuser or diagonal. Adjust your telescope's focus knob slowly in both directions until a sharp image is achieved. Verify that the telescope is properly aligned (collimated) if applicable.

Cannot see a wide field of view

Confirm that the rubber eyeguard is either folded down (for eyeglass wearers) or extended fully (for non-eyeglass wearers). Ensure your eye is positioned correctly relative to the eyecup to achieve the full field.

Edge of the field of view is distorted

Some distortion at the extreme edge of the field can be normal for wide-angle eyepieces. Ensure the eyepiece is properly seated and focused. If the distortion is severe across the entire field, check for potential issues with the telescope's optics or focuser.

Dim or unclear image

Check that the objective lens or primary mirror of your telescope is clean. Ensure all optical surfaces of the eyepiece are clean. Verify that the eyepiece is correctly inserted and that sufficient light is reaching it from the telescope.

Pros and Cons

Pros

  • Provides a wide 66º field of view for immersive stargazing.
  • Excellent eye relief of 14.8mm ensures comfortable viewing, even for eyeglass wearers.
  • Multi-coated optics contribute to sharp, high-contrast images.
  • Suitable for detailed observation of planetary features and lunar surfaces.
  • Includes protective rubber eyeguards for comfort and light blocking.

Cons

  • The 6mm focal length is best suited for objects requiring high magnification.
  • May require a telescope with a suitable focal ratio to achieve optimal performance with the wide field.
  • Narrower field of view compared to ultra-wide eyepieces with greater than 66º FOV.

Setup, Compatibility & Care

Setup:

  1. Ensure your telescope's focuser is clean and free of dust.
  2. Remove the dust cap from the eyepiece.
  3. Insert the 1.25-inch barrel of the eyepiece into your telescope's focuser.
  4. Secure the eyepiece using the set screw on the focuser.
  5. Attach your telescope's diagonal if desired, and then insert the eyepiece into the diagonal.
  6. Adjust your telescope's focus knob until the image is sharp.

Compatibility:

This eyepiece features a standard 1.25-inch barrel and is compatible with most astronomical telescopes that accept 1.25-inch eyepieces, including refractors, Newtonian reflectors, and catadioptric telescopes.

Care:

  • Cleaning Optics: Use a soft lens brush or an air blower to remove loose dust. For stubborn smudges, use a lens cleaning solution specifically designed for optical lenses and a lint-free microfiber cloth. Wipe gently in a circular motion from the center outwards.
  • Storage: Always replace the dust caps when the eyepiece is not in use. Store the eyepiece in a dry, padded case or a dedicated eyepiece box to protect it from dust, moisture, and physical damage.
  • Handling: Avoid touching the optical surfaces with your fingers. The oils from your skin can degrade image quality over time.

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