The high rear projection of 10 cm offers the ER 2,5-10 × 42 telescope guarantees extraordinary optical performance, combined with very solid mechanics which ensures high resistance. This optic can be used both for wandering hunting and for precision hunting on roof terraces
Leica is a German company based in Solms in Germany, but also has a branch in Portugal. Its founder was Oskar Barnack, who deserves credit for inventing the portable camera, which in 1925 ignited a real revolution in the field of photography. In that year the Leica myth was born.
The small and light LEICA I opened up new scenarios in the fields of photography, art and reportage. In the optical workshops of the then headquarters in the city of Wetzlar since 1849 microscopes were successfully developed, from which Oskar Barnack took inspiration to abandon the classic and bulky plate cameras used for photographic art.
Already in 1905 he began a study that lasted ten years to reduce the format of the negative and then enlarge the photographs in the printing phase. To this end, he used a cinema exposure testing tool and developed the world's first compact camera, called the “Ur-Leica”.
It was only after the First World War, precisely in 1924, that LEICA put these new cameras into series production.
The first sector that benefited from these innovations was photo journalism, receiving an extraordinary impulse. Art also took advantage of the new invention.
The Leica quickly became a travel companion in all situations. In 1932 the cameras used were already 90.000, in 1961 one million.
Today Leica is one of the world leaders in the production of cameras, optics for sports and vanity use, and medical equipment such as microscopes.
What we present today is the Leica ER series riflescope, the 2,5-10 × 42, usable for any type of shooting.
The universal magnification and the equally universal zoom range make the ER 2,5-10 × 42 suitable for both stalking and precision hunting on roof terraces. The compact eyepiece and long median barrel offer exceptional mounting flexibility on many rifles. When aiming speed becomes a determining factor, the wide field of view, high rear projection and magnification lead to ideal results. The Leica offers a choice of five types of reticles: Leica 1, Leica 4A, Leica Plex, Leica Ballistik and Leica CDD.
The features that make the ER 2.5 are: water resistance up to a depth of 4 m (13 feet), nitrogen filling to prevent condensation fogging, the AquaDura surface treatment, with which it is guaranteed that the water flows naturally away from the lenses and that dirt is easily removed and finally the correction of the point of impact.
The preset position mechanism can be adjusted in 1/4 MOA (angle minute) steps, which is approximately 0,3 inches at 100 m (110 yards).
In order to improve the performance of the ER 2,5 - 10 x 42, it is possible to install a 50 mm long aluminum hood, which protects the lens and the vision from diffused light and reflections.
This accessory has the same anodized finish as the rifle scope and is engaged by means of a thread. Thanks to the presence of a second thread, it allows the use of filters or even an additional lens hood.
These are in detail the technical characteristics of the ER 2.5:
Lens diameter |
42 mm |
Magnification |
2.5 - 10 x |
Field of view at max. Field of view at min. ? |
3.9 m / 12.80 ft
? 14.5 m / 47.57 ft |
Remote exit pupil |
3.94 ″ / 100 mm |
Exit pupil in diameter |
14.9 - 4.2 mm |
Parallax correction |
100 m / 328.08 ft |
Diopter compensation |
- 4 / + 3 dpt. |
Lens treatment |
Aqua Dura |
Transmission |
TD / TN? 90% |
Central tube diameter |
30 mm |
Corr. Of the point of impact |
MOA (approx.7.3 mm) per click / 100 m / 328.08 feet |
Lens attack filters |
M 46 x 0.75 mm |
Length |
318 - 330 mm |
Weight : |
470 g |
Water tightness |
4m / 13.12ft
|
The ER 2,5 - 10 x 42 offers many solutions in a single product, capable of guaranteeing versatility, resistance and, of course, precision.