Compact top hinge design easily fits in your hand fully multi-coated optics to produce sharp images focus knob with 0.8 turns - close focus from 6.6ft/2m high-resolution BAK-4 roof prisms lightweight and durable rubber coated chassis twist-up eyecups with position stops for eye relief. The 25mm models are ideal for casual nature observers. They use the same optical system as the full-size models but in a compact design. 10x25 Binoculars : Power: 10 Objective: 25mm Lens Coating: Fully Multi-Coated (FMC) Field of View: m @1000m / ft @1000yds96m / 288ft Close Focus: 2m / 6.6ft Eye relief: 13mm / 0.5 Height: 106mm / 4.2 Weight: 295g / 10.4oz 8x25 Binoculars : Power: 8 Objective: 25mm Lens Coating: Fully Multi-Coated (FMC) Field of View: m @1000m / ft @1000yds119m / 356ft Close Focus: 2m / 6.6ft Eye relief: 13mm / 0.5 Height: 106mm / 4.2 Weight: 295g / 10.4oz