Riton 5 Primal 10×42 ED Binocular

The Riton 5 Primal 10×42 ED binocular is a mid-size roof-prism optic engineered for extended observation in the field. It pairs 10x magnification with 42 mm objectives and Riton ED glass to deliver clear images with reduced chromatic aberration. The chassis is built from aluminum alloy for a balance of durability and manageable weight, and the optic is nitrogen-purged and sealed for reliable performance in variable conditions. These binoculars are suited for birding, scouting, outdoor observation, and recreational use.

Key Specifications

• The magnification is 10x for extended-range viewing.
• The objective diameter is 42 mm to gather ample light in varied conditions.
• The prism system uses a BAK4 roof prism for efficient light transmission and edge-to-edge clarity.
• The optics are fully multi-coated to improve light transmission and contrast.
• The focus mechanism is a center focus design for rapid, single-handed adjustments.
• The listed weight is 30 oz for a balance of stability and carry comfort.
• The optic is specified as fog/waterproof for use in damp or variable weather.
• The published exit pupil diameter is 4mm – 1.30mm as provided in product data.
• The supplied dimensions are 3.80 x 6.45 x 7.90 inches as listed in product specifications.

Durable, compact, and optically capable, the 5 Primal 10×42 ED balances performance and portability for outdoor observers who need dependable glass in changing conditions. Its combination of ED glass, BAK4 prisms, and multi-coated lenses provides a clear sight picture while the aluminum alloy construction and sealed, nitrogen-purged design help keep the optic working reliably through extended use in the field.

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