The device turned out to be very successful, with high aperture ratio, plasticity and large field of view, that is why it became popular in the army. It is the first binocular model with 30mm lenses. The Marineglas is a military analogue of a 'civilian' model Silvamar with similar characteristics. Zeiss-Feldstecher, Handfernglaser von 1894-1919, Modelle-Merkmale-Mythos, pp.399-414) Actually, the binoculars have survived in such appearance up to present days (see Hans T.Seeger. It helped increasing the device’s reliability greatly. Moreover, the prisms inside the binoculars were no longer pressed by prism covers – they were fixed with the help of special flat springs instead.

The optical characteristics were significantly improved in new devices (the field of view and the objective diameter were increased, optical aberrations were decreased), and the devices’ design was also changed: the central hinge and the “lugs” for a neck strap were not attached to binocular with the help of screws any more, they became integral with it instead, an eccentric objective alignment system appeared and its frame design was also changed, the prism covers spanned the binoculars’ carcass, and they were lubricated with a special compound at the joint points in order to improve impermeability. The new devices’ detailed characteristics were published in the 74-th volume of Carl Zeiss catalog in August 1907. In 1907, Carl Zeiss radically changed the framework and the design of his binoculars, replacing 'civilian' models Feldstecher 6 Fach by Telex, Feldstecher 8 Fach by Telact, Jagdglas by Silvamar and Feldstecher 12 Fach by Telefort.

1908 carl zeiss jena binoculars