The RS-4 2.5-10x50 is a versatile and robust riflescope designed for a variety of shooting applications. Here’s an overview of its key features and technical specifications:

Key Features:

- Magnification: 2.5-10x – This variable magnification allows for both close-range and longer-range shooting, making it suitable for different situations.

- Objective Lens Diameter: 50 mm – A larger objective lens allows for better light transmission, improving visibility in low-light conditions.

- Field of View: 16 - 4 m/100m – Indicates the width of the view at 100 meters. This range provides versatility for target acquisition.

- Reticle: 4 – A standard reticle design that aids in quick aiming and target acquisition.

- Focal Plane: 2nd focal plane – The reticle size remains constant as magnification changes, which is preferred by many shooters for maintaining consistent holdovers.

- Light Transmission: 90% – This high percentage indicates excellent light management through the lenses for clearer images.

- Eye Relief: 90 mm – Adequate distance from the eyepiece to accommodate a range of shooting positions and to prevent eye strain.

Technical Specifications:

- Length: 344 mm – Overall length of the scope.

- Weight: 660 g – A relatively lightweight scope, making it easier to handle during hunts or at the range.

- Tube Diameter: 30 mm – This standard size provides a robust platform for mounting and allows for good adjustment range.

- Exit Pupil: 10 - 5 mm – This size indicates the amount of light exiting the scope and entering the eye, affecting brightness and clarity.

- Adjustment per Click: 1 cm (at 100 m) – Indicates the amount of shift in point of impact with each click of the turret adjustments, allowing for precise tuning.

- Battery Type: 2x CR2032 – Two batteries are used for powering any illuminated reticle or other electronic features.

- Diopter Adjustment: -3 to +2 dpt – This allows for customization of the focus to suit the individual shooter's vision.

 Summary:

The RS-4 2.5-10x50 riflescope offers a great combination of versatility, durability, and performance, making it ideal for tactical shooting, hunting, and other applications. The features, such as its variable magnification, large objective lens, and high light transmission, ensure it performs well in a variety of lighting conditions, while the robust construction and user-friendly adjustments enhance overall usability.