The PASSION 10x50HD binoculars are a GPO flagship product built for lower-light field use. Both the 10x magnification and the 50mm objective lens feature an excellent balance of size, weight, and magnification for those looking for a popular magnification standard and larger low-light objective lenses. These binoculars give you a 309-foot field of view yet weigh only 33.9 ounces.All PASSION HD binoculars feature high-resolution, high-transmission optics and carry the industrys best Spectacular Lifetime Warranty. Specifications for German Precision Optics PASSION HD 10x50mm Schmidt-Pechan Prism Binocular: Manufacturer: German Precision Optics Color: Charcoal/Black Magnification: 10 x Objective Lens Diameter: 50 mm Prism System: Schmidt-Pechan Prism Material: BAK-4 Image Stabilizer: No Eye Relief: 0.77 in Exit Pupil: 5 mm Field of View, Linear: 309 ft at 1000 yds Field of View, Angle: 5.89 degrees Optical Coating: GPObright Binoculars Focus System: Center Focus Twilight Factor: 22.36 Interpupillary Distance: 58 – 76 mm Close Focus: 3 m Diopter Adjustment Range: -4 – 4 dpt Weather Resistance: Rainproof Water Resistant Mark: 500 m Water Resistance Level: Waterproof Length: 6.9 in Weight: 33.9 oz Finish: Rubber Armor Fabric/Material: Magnesuim/Aluminum Package Type: Box Magnification Type: Fixed Fogproof: Yes Size: 2.5H x 6.9L x 5.3W in Features of German Precision Optics PASSION HD 10×50 Schmidt-Pechan Prism Binocular Double HD glass technology Dielectric and phase correction coatings GPObright high-transmission lens coatings on every glass surface PASSIONdrop hydrophobic coatings Aluminum adjustable eyecups and center focusing locking diopter Package Contents: German Precision Optics PASSION HD 10×50 Schmidt-Pechan Prism Binocular Hard Case Neoprene Strap Ocuar Cover Objective Covers Cleaning Cloth
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These are decent binoculars delivering good, but not stellar optical performance. They offer a decently sharp image across the field of view. The contrast is good. CA is well controlled with only slight green fringing in the center increasing to strong purple and green fringing starting about half way to the edges on a bright, but cloudy day.The objective covers attach through an annoying cord. I prefer ones that attach directly to the binoculars. Otherwise, the build quality is very nice. I like the eye relief and diopter adjustment. The magnesium alloy body gets quite cold in the winter.So, why the mediocre review? I compared these to a pair of Bushnell Engage 10x50s. Although the GPOs are slightly better (barely), they aren’t 4x the price better. Not even close! Under most comparisons, I struggle to see a difference at all. Even in extreme situations, like low light or back lighting, the Bushnells as often as not perform better than the GPOs. The only difference is the GPOs are sharp edge to edge, but I hardly notice this in practice.