The Celestron 45º Erecting Prism Diagonal is a must-have accessory for transforming your refractor or catadioptric (Schmidt-Cassegrain) telescope into a terrestrial viewing tool. Designed to produce right-side-up and left-to-right correct images, it allows you to enjoy natural views during daytime observations of landscapes, wildlife, and moving objects. Perfect for both beginners and experienced observers, this diagonal delivers clear, correctly oriented images and provides a comfortable viewing angle for extended use.
Key Features:
- Correct Orientation for Terrestrial Viewing: Provides right-side-up, left-to-right correct images, making it ideal for nature, bird watching, and other daytime observations.
- 45º Viewing Angle: Offers a comfortable viewing position when the telescope is angled horizontally, perfect for terrestrial and horizon-level objects.
- Fits 1.25” Focusers and Eyepieces: Works with any 1.25” focuser or visual back and accommodates standard 1.25” eyepieces.
- Well-Constructed for Durability: Features high-quality materials and construction for long-term use and performance.
- Includes Dust Caps: Protects your erecting prism from dust and debris when not in use.
Why You Need This Diagonal:
If you're using a standard star or mirror diagonal, you might notice that terrestrial images appear upside down or reversed, which can make viewing moving objects difficult. By simply replacing it with the Celestron 45º Erect Image Diagonal, you’ll enjoy properly oriented images that make following objects like birds or boats effortless. Its 45º angle is perfect for comfortable daytime observations, especially when your telescope is in a horizontal position.
Compatibility:
- Suitable for refractor and catadioptric telescopes (like Schmidt-Cassegrain models).
- Note: This diagonal is not compatible with Newtonian reflector telescopes, as they will still produce rotationally skewed images due to their optical design.
Product Details:
- Product Dimensions: 11.18 x 7.62 x 5.33 cm
- Weight: 130 g
- Model Number: 94112-A
- Country of Origin: Taiwan
- Manufacturer: Celestron
- Includes dust caps: Protect from dust and debris
Customer Reviews:
- "I do not know why I waited 10 years to buy this. Makes finding stars so much easier. Clear and works perfectly!"
- "This image prism works with 1.25 eyepieces and provides an erect image (correct side up and correct right/left). Well made by Celestron and very useful when viewing the moon and planets, where orientation can be an issue, especially for younger viewers."
- "Nice. Does what it's supposed to do. Makes the image right-side-up, especially with terrestrial viewing. No one wants to see upside-down mountains!"
- "What a great deal! Nice, crystal-clear view through the telescope! Very well made!"
Turn your astronomical telescope into a versatile tool for both celestial and terrestrial observations with the Celestron 45º Erecting Prism Diagonal. Perfect for nature enthusiasts, bird watchers, and anyone who loves exploring the world around them!