Pentax S Series - SD 16x50 Standard

Pentax S Series - SD 16x50 Standard arrives as a high-power binocular designed for clear long-distance observation, ideal for users who need strong 16x magnification in a compact package.

These Pentax SD 16x50 binoculars use BaK-4 Porro prisms to deliver bright, well-contrasted images across the field of view. The 16x magnification combined with a 50 mm objective diameter provides excellent reach for birdwatching, coastal viewing, or stadium use.

The exit pupil measures 3.1 mm and the eye relief is 1.3 cm, offering comfortable viewing for short observation sessions and for users without extended eyeglass spacing. The field of view is 61 m at 1000 m, giving a useful balance between magnification and situational awareness.

With a closest focusing distance of 10.3 m, these binoculars allow relatively close subject work such as observing nearby wildlife or inspecting architectural details. Note that the Pentax SD 16x50 is not waterproof, so users should avoid exposure to heavy rain or submersion.

Physically the instrument is compact and portable: 196 mm wide, 166 mm deep and 56 mm high, and it weighs 900 g. The black finish keeps a professional, unobtrusive appearance suitable for field use.

Key selling points include the high 16x magnification, BaK-4 Porro prism design for image quality, a generous 50 mm objective for light gathering, and a twilight factor of 28.3 which helps in low-light conditions such as dawn and dusk.

Use cases for the Pentax S Series - SD 16x50 Standard include long-distance birdwatching, shore and marine observation (from above water), target spotting at ranges, and sporting events where greater detail is needed at a distance. Its size and weight make it practical to carry on day trips and to mount on heavier tripods if needed.

• Magnification: 16x for detailed long-range viewing
• Prism: BaK-4 Porro for crisp contrast
• Objective: 50 mm for strong light gathering and a twilight factor of 28.3