PrecisionRange II Elite

The chemical composition or classification of a battery, such as alkaline, lithium‑ion, NiMH, or lead‑acid. It indicates the energy storage technology used in the product and helps users identify compatibility with devices that require specific battery chemistries.

The exit pupil diameter is the linear size of the opening through which light exits an optical device, measured in millimetres (mm). It indicates how much light can pass through the system and affects brightness and field of view. This measurement helps users compare compatibility with lenses, filters or accessories that require a specific aperture.

The distance from the eyepiece to the eye that allows a user to see the full field of view without strain or loss of image size. It is measured in linear units such as millimetres or centimetres and applies to optical devices like binoculars, telescopes and cameras.

The optical magnification factor of a device such as a camera lens, binoculars or telescope. It indicates how many times larger an object appears compared to its actual size when viewed through the product. Values are expressed as a multiplier (e.g., 2x, 10x).

The linear measurement across the widest part of a telescope’s objective lens, expressed in units such as millimeters or centimeters. It indicates the size of the primary optical element and determines light‑gathering capability and image quality.