The Steiner Predator 4s is the world’s shortest and lightest 4-16X hunting riflescope being 25% shorter than its closest competitors while delivering an astounding magnification range. Built on a rugged 30mm tube chassis and measuring 10.9 inches in length the Predator 4s weighs just over 18 ounces. This compact ultralight riflescope fulfills all the requirements of traditional and contemporary hunting scenarios while optimizing weight distribution and optical performance. – The Predator 4s doesn’t sacrifice quality for size but improves on it. With an exceptionally generous field of view Steiner’s legendary glass and precision component engineering the Predator 4s ensures bright high-clarity and high-contrast imaging with remarkable edge-to-edge sharpness. This class-leading optical clarity plus industry-leading light transmission combines with a massive field of view to ensure hunters have the best possible sight picture even in the most challenging lighting conditions. – Further an illuminated E3 second focal plane reticle with 11 brightness settings delivers a fast and crisp sight picture for quick and confident point of-aim/point-of-impact performance. Foul weather and harsh climates also offer no resistance to the Predator 4s thanks to its fogproof and waterproof design and broad -13°F to +145°F operating temperature. – Designed for versatility the Predator 4s’ parallax compensation featuring a large adjustment range is specially tailored for use with thermal imaging attachments while improving weight balance. The reduced length and weight when compared to conventional riflescopes help shift weight bias rearward to minimize holding effort while making the shot. This is especially welcome when using clip-on-style thermal units because it makes the rifle more agile when tracking game movement. – Delivering the best in German precision the Predator 4s promises peak optical performance in a compact tough weather-resistant platform suitable for any hunting adventure anywhere. – Magnification 4-16x – Reticle E3 – Objective Lens 44 mm – Focal Plane Second Focal Plane – Field of View at 100 meters 11-2.75 m – Field of View at 100 meters 11-2.75 m – Eye Relief 85 mm – Exit Pupil 10.8-2.95 mm – Diopter Adjustment Range -3 dpt / +2 dpt – Illumination Control 11 lighting levels ( 6 night / 5 day) – Wind/Elevation Click Value 1 cm / 100 m – Parallax/Focus Range 50 m to infinity – Nitrogen Filled Yes – Operating Temperature Range -25°C to + 63°C