Lynx Series-44 binoculars.
Twist down retractable eyecups make the series-44 ideal for use with or without spectacles. Spectacle-wearers can now see the full field of view without the normal tunnel-view effect producd by other binoculars. This feature is called "Long eye relief".
Lynx series-44 binoculars are small and light, which makes them ideal to carry with you on hikes etc. BaK4 prisms transmit more light and produce wide-angle images. Black rubber covering reduces the chance of damage to the finish and the internal components. Multi-coated optics transmit more light than regular lens coatings, and reduce image flare and increases image contrast. The result is a bright, clear, sharp and colour-true image. Internal focus mechanism prevents dirt ingress, and is less likely to be damaged due to hard knocks or drops.
The roof-prism design, whilst being more costly to manufacture than porro-prism, results in a more compact binocular.