A superlative set of binoculars: for 20 x magnification observation without a tripod. The 20x60 T* S makes this possible due to its technically unique image stabilization. The unavoidable tremble that makes freehand observation at this extreme magnification impossible is "switched off" at the touch of a button. As a result, you experience the same high degree of detail resolution that you would expect from a tripod. Convincing performance for bird and nature observation over long distances. Extreme performance in magnification and lens diameter The 20 x magnification provides an outstanding level of detail resolution. Even at long range you can identify the finest of details. Turn the identification of birds into a real pleasure and recognise even distant passing birds with ease. Extreme brightness is supplied by the 60 mm lens and Porro prism systems. High-performance optics An elaborate lens construction with special glass gives a brilliant and razor-sharp image, even at 20 x magnification. The high light transmission is guaranteed by low light Porro prisms and the elaborate Carl Zeiss T* coating. This enables you to make out details through to the very last of the light. Image stabilisation The purely mechanical image stabilisation system with its gimbal-mounted spring joint and magnetic damping action works immediately at the touch of a button, noiselessly and without battery power. This results in a unique visual experience, such as you have never seen before - totally free of unavoidable hand tremor. Robust mechanics The image stabiliser is a mechanical masterpiece and naturally needs protection during harsh use, when idle or during transport. Secure, automatic locking of the moving parts when not in use and the solid, rubber armour of the metal casing serve to protect the internal optics and mechanics. Specifications: Magnification 20 x Effective Lens Diameter 60 mm Exit Pupil Diameter 3 mm Twilight Factors 34.6 Field of View at 1000 yd 156 ft Subjective Viewing Angle 60 Adeg Close Focus in Ft 45.93 ft Diopter Adjustment Range +4 | -4 dpt Pupil Distance 57 - 73 mm Eye Relief 13 mm Lens Type Achromat PrismSystem Porro Water Resistance Sealed against spray water LotuTecA(R) no Nitrogen Filling no Functional Temperature in AdegF -4 | +104 AdegF Height in Inch 10.8 inch Width in Inch at an eye width of 65 mm 6.33 inch Weight in Use in oz 58.55 oz Order Number 526000