GPO Passion HD Binoculars - 12.5x50

The PASSIONdrop hydrophobic coating repels water, oil, and dirt from the lens surface, ensuring a clear and unobstructed view, especially in adverse weather conditions, and making cleaning easier.

Yes, the aluminium eyecups can be retracted to provide the correct eye relief for eyeglass wearers, allowing them to achieve a full field of view.

You adjust the diopter to compensate for differences in vision between your eyes. Typically, you close one eye, focus the binoculars on a distant object with the other eye using the central focus wheel, then switch eyes and adjust the diopter on the eyepiece to achieve sharpness. Some models may have a locking mechanism for the diopter.

Schmidt-Pechan is a type of roof prism design used in binoculars. It is known for its compactness and ability to deliver a high-resolution, in-line image. The 'phase correction' and 'dielectric mirror coatings' applied to these prisms further enhance image quality.

The minimum close focus distance for the GPO Passion HD 12.5x50 binoculars is 2.5 meters (approximately 8.2 feet).

These binoculars weigh 970 grams.

While the 12.5x magnification and 50mm objective lenses offer good light gathering for brighter celestial objects like the moon or brighter star clusters, they are primarily designed for terrestrial use. For deep-sky objects, binoculars with lower magnification and wider fields of view are often preferred, or a telescope might be more suitable.

Ensure the eyecups are adjusted correctly for your eye relief. Perform the diopter adjustment procedure carefully. Use the central focusing wheel to achieve sharp focus on your subject.

Ensure the objective lenses (front lenses) are clean and free of debris or smudges. The 12.5x50 configuration is designed for good low-light performance, but extremely low light may still present challenges.

This may indicate a seal failure. Contact GPO customer support. Avoid rapid temperature changes, which can sometimes cause temporary internal fogging.

Ensure the diopter locking mechanism is properly engaged after adjustment. If the issue persists, there may be a mechanical problem with the diopter adjustment ring; contact GPO customer support.