Bushnell Sentry 18-36x50 Porro Prism Scope

The minimum distance at which a camera lens can focus on an object while maintaining sharpness and clarity. It is expressed as a linear measurement (e.g., meters or centimeters) and indicates how close the subject can be to the sensor before the image becomes out of focus.

The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.

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 proportion or angular extent that a device, such as a camera or binocular, can capture or display. Values may be expressed as a percentage of coverage (e.g., 100 %) or in degrees for horizontal/vertical angles (e.g., 160°). The attribute indicates how wide the field of view is relative to the sensor or lens.

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.

Indicates whether the product is resistant to water or moisture exposure. A value of "Yes" means the item can withstand contact with water under specified conditions, while "No" indicates it is not water‑resistant.

The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.

The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.