Celestron 93319 90° Erect Image Diagonal 1.25 inch Amici Prism for Telescope

The Celestron 93319 is a high-quality 90° erect image diagonal designed for terrestrial viewing with telescopes. Featuring an Amici prism, it provides correctly oriented, non-reversed images, making it ideal for birdwatching, nature observation, and other daytime activities. The diagonal fits standard 1.25" focusers and accepts 1.25" eyepieces.

Advantages

Enjoy comfortable viewing at a 90° angle without needing to contort your neck. The erect image orientation eliminates the need for a separate erecting prism, simplifying your setup. Fully coated optics ensure bright, clear views.

Suitable for

• Terrestrial observation with refractor, Schmidt-Cassegrain, and Maksutov-Cassegrain telescopes
• Birdwatching, wildlife viewing, and landscape observation
• Astronomical use when an erect image is preferred

Key specifications

• Type: Erect Image Diagonal
• Angle: 90 degrees
• Telescope Barrel Size: 1.25 inches (31.75 mm)
• Eyepiece Barrel Size: 1.25 inches (31.75 mm)
• Optical Design: Amici Prism
• Prism Material: Optical Glass
• Optical Coatings: Fully Coated
• Housing Material: ABS Plastic (body), Anodized Aluminum (barrel)
• Filter Threads: Yes, 1.25"
• Dust Caps: Included
• Colour: Black

Recommendations

For best results, use with a quality 1.25" eyepiece. The diagonal is lightweight and portable, perfect for on-the-go observers.