[Model Number] CB-020 [About Effective Aperture] The effective diameter is an indicator of binoculars' light-gathering ability. The larger this number, the more light they can gather. However, binoculars with larger effective diameters tend to be heavier, so binoculars with an effective diameter of 20-25mm are ideal for general concerts. However, when observing dark places other than the stage, an effective diameter of 30mm or more is recommended.
[About Magnification] The idea that "the higher the magnification, the better you can see" is a misconception. The appropriate magnification depends on the purpose. In particular, magnifications that are too high narrow the field of view and make it dark, so they may not be suitable for concerts. We have listed the recommended magnifications for each venue below. Budokan: 8x magnification for arena seats, 10x magnification for stand seats; Tokyo Dome: 8x magnification for arena seats, 10-12x magnification for stand seats; Osaka Dome: 8x magnification for arena seats, 10x magnification for stand seats; Sapporo Dome: 10x magnification for arena seats, 10-12x magnification for stand seats; Nagoya Dome: 10x magnification for arena seats, 10-12x magnification for stand seats; Fukuoka Dome: 8x magnification for arena seats, 10x magnification for stand seats; Saitama Super Arena: 8x magnification for arena seats, 10x magnification for stand seats. These are guidelines, and the optimal magnification may vary depending on your field of vision, so please use these values for reference only.
[Weight] For extended use, we recommend binoculars weighing less than 300g. However, binoculars weighing less than 150g may have issues with the quality of the material or the thickness of the lenses. High-quality, lightweight binoculars typically cost over 10,000 yen, so be careful when choosing inexpensive, lightweight binoculars. Preime binoculars are designed to maximize the enjoyment of your live performance. Enjoy the live show 100%. [Features of Prime Binoculars] Our Prime binoculars offer 12x magnification, providing optimal performance in most concert venues and domes. The objective lens has an effective diameter of 25mm and a 2.5mm exit pupil, providing natural brightness. They also feature multi-layer coating and a lightweight design weighing 260g for extended use. Preime binoculars are meticulously designed to maximize your concert experience.
[Compatible with Glasses] Prime binoculars can be worn with glasses. Please note that the binoculars may have creases on the eyepieces when you receive them. If this occurs, please rest assured that they will return to their original condition after 2-3 days of use. [Specifications] Optical glass, fiberglass body, strap included, eyecups, non-night vision. While we manufacture our products with the utmost care, if dust gets inside the lenses or there is a problem with the focusing mechanism, we will provide a product exchange or refund.
