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Celestron Observer's Accessory Kit

Accessory kit with 1.25" eyepieces and additional filters

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Item #: 87294308

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This Celestron accessory kit can be used in any telescope with a 1.25" focuser. With two extra eyepieces and a Barlow lens, you'll have four different magnifications to choose from. The 17mm Plossl eyepiece is good for medium magnification with most telescopes, allowing you to view entire planets. When you want to get closer and look at the details, that's where the 6mm comes in handy. The third lens is a 2X Barlow lens which doubles the magnification of any 1.25" eyepiece you drop in, increasing your viewing options.

The included filters help draw out specific features: the medium-blue filter enhances contrast of the cloud belts on Jupiter and the deep red filter is a good choice when you want to define the polar ice caps on Mars. The moon filter blocks out glare on brightly lit bodies like Venus and Earth's moon.

The kit includes a microfiber cloth for safe cleaning of sensitive optics, and a hard plastic carrying case lined with foam so lenses won't get jostled or nicked when you're on the move.

Product Highlights:

  • 17mm Plossl eyepiece offers a nice medium magnification view
  • 6mm Plossl provides high magnifications, great for the moon and planets
  • 2X Barlow lens doubles your eyepiece magnification and can also be used with a camera for astrophotography
  • moon filter helps to dim bright reflected light so you can see more detail
  • red and blue filters highlight features on Mars, Jupiter, and Saturn
  • hard plastic carry case with foam-lined interior keeps glass lenses safe
  • microfiber cleaning cloth safely removes fingerprints and smears from your optics
  • case dimensions: 12-1/4"W x 9-1/2"H x 4-1/2"D
  • weight: 36 oz.
  • warranty: 2 years parts and labor
  • Our 60-day money-back guarantee

Celestron Observer's Accessory Kit Reviews

Hands-on research

What's in the box?

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  • 17mm Plössl Eyepiece (with 2 caps)
  • 6mm Plössl Eyepiece (with 2 caps)
  • 2x Barlow / T-Adapter (with 2 caps)
  • #80A Blue Filter (in plastic case)
  • #25 Red Filter (in plastic case
  • Moon Filter (in plastic case)
  • 6" Square microfiber cleaning cloth
  • Black plastic carrying case
  • Instruction Sheet

Product Research


Overview: The Celestron Observer's Accessory Kit includes a variety of eyepieces and filters, a microfiber cleaning cloth, and a high-impact plastic, foam-lined carrying case. The kit comes with the following lenses and filters:

  • 17mm Plössl Eyepiece
  • 6mm Plössl Eyepiece
  • 2x Barlow Lens/T-Adapter
  • #80A Blue Filter
  • #25 Red Filter
  • Moon Filter

Lenses: The 17mm and 6mm Plössl eyepieces can be used with any telescope with a 1.25" focuser. They each have a four-element design with a 52-degree field of view. The lenses are fully multi-coated for crisp, clear images and increase light transmission. The 2x Barlow lens/T-adapter fits between the eyepiece and the telescope to double the magnification of any 1.25" diameter eyepiece. You can attach an optional T-Ring, compatible with Nikon or Canon DSLR cameras for astrophotography.

Filters: Adding a colored filter to your eyepiece can enhance certain details on a planet's surface. The #80A is a medium-blue filter that enhances the contrast of cloud belts on Jupiter and the polar ice caps on Saturn, or increase the contrast on the Moon. The #25 filter is deep red in color and can help define Saturn's polar ice caps. It blocks quite a bit of light coming through the telescope, so it should only be used on bright objects or with a telescope with a large aperture. The Moon Filter cuts down on the amount of light reflecting off the Moon to give you a better view of the surface details. It also works well with Venus, enabling you to detect the phases of the planet more easily. All of the included filters work with any 1.25" diameter eyepiece.

Carrying Case: The black, high-impact plastic has die-cut foam rubber to protect your lenses and filters. There are additional cut areas for additional eyepieces or accessories.

Our Product Research Team

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