Leica Camera AG, Wetzlar, presents a new generation of the Leica Ultravid HD 42 binoculars. In comparison with earlier models, the optical performance of the new Leica Ultravid HD-Plus 42 with respect to light transmission has been significantly improved again.
A decisive role in this is played by new coating methods that deposit thin films of special substances on the lens surfaces under ultra-high vacuum in a so-called high temperature plasma process. In addition to this, the prisms of the new binoculars are made from specially formulated SCHOTT glasses with exceptional transmission characteristics (SCHOTT HT glasses). The significantly increased light transmission, particularly in the blue-violet band, ensures not only higher image brightness, but also better color transmission and considerably improved twilight vision.
| Prism Type | Roof prism with phase-correcting coating P40 and HighLux-System HLS™ |
| Magnification | 7.0x |
| Objective Lens Diameter | 42mm |
| Angle of View | 8 degrees (actual) |
| Field-of-View | 420' at 1000 yd / 140 m at 1000 m |
| Minimum Focus Distance | 3.3m / 10.8 ft |
| Exit Pupil Diameter | 6mm |
| Eye Relief | 17mm |
| Interpupillary Adjustment | 55-75 mm |
| Dioptric Correction | ±4 diopters |
| Focus Type | Central focusing device |
| Twilight Factor | 17.1 |
| Automatic diopter compensation ADC | Yes |
| Eyepieces for eyeglass users | Yes, removable with two 2 click stops |
| No. of lens elements (each side) | 9, all with HDC coating |
| Watertightness | Watertight to a depth of 5m/16ft |
| Housing | Die-cast magnesium, nitrogen-filled |
| Dimensions | 120x141x68mm / 4 3/4x5 5/8x 2 5/8 in |
| Weight | 27.2 oz / 770 g |