Celestron Ultima Edge 18mm Flat Field Eyepiece 1.25 inch

Frequently Asked Questions

• Q: What is the size of the Celestron eighteen millimeter Flat Field Eyepiece? A: The size is one point two five inches in diameter. It has a total length of five point four inches, width of three point nine inches, and height of three inches.
• Q: What is the field of view of the eighteen millimeter Ultima Edge eyepiece? A: The field of view is sixty-five degrees. This wide apparent field allows for a more immersive viewing experience while observing celestial objects.
• Q: How many elements are in the lens design of this eyepiece? A: The lens design features eight elements. This configuration maximizes light transmission and enhances image clarity from center to edge.
• Q: How do you use the Celestron eighteen millimeter eyepiece? A: Simply insert the eyepiece into a compatible one point two five inch focuser or star diagonal. It is compatible with both eyeglass and non-eyeglass wearers due to its long eye relief.
• Q: Is this eyepiece suitable for both beginners and experienced users? A: Yes, it is suitable for both beginners and experienced users. The user-friendly design and comfortable viewing make it accessible for all skill levels.
• Q: Can I use filters with the eighteen millimeter eyepiece? A: Yes, it can accept standard one point two five inch filters. The eyepiece's mounting barrel is internally threaded for this purpose.
• Q: What is the recommended way to clean the eyepiece? A: Use a soft microfiber cloth to gently wipe the lens surface. Avoid using harsh chemicals or abrasive materials to prevent scratches.
• Q: How should I store my eyepiece when not in use? A: Store the eyepiece in a protective case or pouch. Keep it in a cool, dry place to avoid moisture build-up that can damage the optics.
• Q: Does this eyepiece have a parfocal design? A: Yes, it features a parfocal design. This means you can switch between other Ultima Edge eyepieces without needing to refocus.
• Q: Is this eyepiece compatible with other brands? A: No, it is only parfocal with other Ultima Edge eyepieces. Switching with parfocal models from other brands may require refocusing.
• Q: What kind of grip does the eyepiece have? A: It features a molded rubber grip ring. This non-slip handling allows for easy adjustments during observing sessions.
• Q: What are the benefits of the fully multi-coated optics? A: The fully multi-coated optics enhance light transmission and reduce glare. This results in improved image quality and contrast during observations.
• Q: What types of celestial objects can I observe with this eyepiece? A: You can observe planets, stars, and the Moon's surface clearly. The higher-powered magnification is ideal for viewing smaller objects.
• Q: Is the eyepiece comfortable for eyeglass wearers? A: Yes, it provides comfortable viewing for eyeglass wearers. The long eye relief of twenty millimeters and fold-down rubber eyeguard enhance comfort.
• Q: Does this eyepiece have any hazardous materials? A: No, this eyepiece does not contain hazardous materials. It is safe for general use during astronomical observations.