Accessory Kit Celestron Observer's Accessory Kit — 1.25" (3.18 cm), Black, 254×330×127 mm

The Celestron Observer's Accessory Kit — 1.25" (3.18 cm) is a compact set of essential telescope accessories supplied in a black, foam-lined plastic carry case sized 254×330×127 mm. Designed for observers and students, the kit contains two multi-coated Plossl eyepieces (17 mm and 6 mm), a 2x Barlow lens with T-threads, three 1.25" screw-in filters (80A blue, 25 red, and a Moon filter), a microfiber cleaning cloth and dedicated slots in the case to protect and organize the components. Components are compatible with any telescope that accepts 1.25" accessories and are intended to expand magnification and contrast options for planetary, lunar and bright deep-sky observing.

Advantages

The kit combines commonly used optical tools in a single, portable package with protective foam to prevent damage during transport or storage. Fully multi-coated Plossl eyepieces provide a 52° apparent field of view and improved light transmission, while the 2x Barlow doubles the focal power of any 1.25" eyepiece to increase magnification without requiring additional eyepieces. The included screw-in filters are sized for 1.25" eyepieces and offer targeted contrast enhancement for planetary details and lunar glare reduction. A microfiber cloth is supplied for safe lens cleaning, and the case leaves room for a few extra accessories.

Suitable for

• Beginner and intermediate amateur astronomy observation
• Planetary and lunar viewing with 1.25" focusers
• Educational use in schools, clubs, or outreach events
• Field use where a compact, protected accessory set is required

Key specifications

• Eyepieces: 17 mm and 6 mm Plossl type, 1.25", 52° apparent field of view, fully multi-coated optics
• Barlow: 2x magnification, 1.25" barrel with T-threads for camera attachment
• Filters: 1.25" screw-in planetary and lunar filters — #80A (medium blue), #25 (deep red), Moon filter
• Case dimensions: 254 × 330 × 127 mm; foam-lined plastic carry case with die-cut compartments
• Cleaning: Included microfiber cloth for safe optical surface cleaning
• Compatibility: Designed for telescopes with 1.25" (3.18 cm) focuser/eyepiece holders

How to use

Install the selected 1.25" eyepiece into your telescope focuser and secure it in place. Use the 17 mm eyepiece for medium power views and the 6 mm eyepiece for higher power planetary or lunar detail when seeing permits. Screw a filter onto the threaded end of any 1.25" eyepiece when enhanced contrast or glare reduction is desired, then insert the eyepiece into the focuser. Insert the Barlow between the focuser and any 1.25" eyepiece to double that eyepiece's magnification; the Barlow also provides T-threads for attaching a camera with an optional T-ring according to included instructions. Clean lenses gently with the supplied microfiber cloth after removing dust by blowing or brushing; avoid rubbing abrasive particles across optical surfaces.

Usage recommendations

Use lower magnifications (for example the 17 mm eyepiece alone) on nights of poor seeing to maintain image sharpness; reserve the 6 mm eyepiece or the Barlow-enhanced combinations for nights of steady atmospheric conditions. Apply the #80A blue filter to enhance contrast on Jupiter and Saturn, the #25 red filter for Mars detail on bright targets and the Moon filter to reduce lunar glare. Store accessories in their foam-cut compartments to protect optical surfaces and threads during transport.