Celestron Royal Observatory Greenwich Binoculars User Guide

Product Overview

The Celestron Royal Observatory Greenwich binoculars are high-quality Porro prism optics designed for clear, long-distance viewing. These binoculars feature a durable construction with rubber eyecups and a central focusing mechanism, making them suitable for various outdoor observations.

Safety Information

WARNING: Never look directly at the sun while using these binoculars. Doing so can cause permanent and irreversible eye damage.

Adjusting Interpupillary Distance (IPD)

To ensure a comfortable and clear view, you must adjust the binoculars to match the distance between your eyes. Hold the binoculars with both hands and look through them at a distant object. Gently move the two halves of the binoculars around the central hinge until you see a single, clear circular image through both eyes.

Adjusting the Diopter

Proper diopter adjustment compensates for differences between your eyes, ensuring a sharp image. Follow these steps:

• Close your right eye and look through the left eyepiece with your left eye. Rotate the center focusing wheel until the image is sharp.
• Close your left eye and look through the right eyepiece (the diopter). Rotate the right eyepiece itself until the image is sharp.
• Open both eyes and look through both eyepieces. The binoculars are now calibrated to your vision.
• For future focusing on objects at different distances, use only the center focusing wheel.

Maintenance and Support

Keep your lenses clean and store the binoculars in a safe, dry place when not in use. For complete technical specifications, warranty information, or technical support, please visit the official Celestron website at celestron.com/support/warranties or celestron.com/pages/technical-support.