To the category: Binoculars
The SIGETA Asterial 25x100 Astronomical binoculars ( with carrying case) is a premium class optic designed for observing celestial objects and faraway ground targets. It is an outstanding optics choice for the astronomy enthusiasts loving bright images of the night sky.
Its metal alloy housing is constructed in the Porro style and amplified by a central aluminum rod with objective cuffs for maximum structural rigidity and preservation of alignment. This center part is complemented by a tripod adapter with a standard ¼" threaded fixing, which can be repositioned for optimal binocular balance once it is mounted on a tripod. The binoculars have a rubber armouring on the top which improves the grip between your hands and the binoculars while also protecting the instrument from external influences. The interior is nitrogen-purged, preventing any condensation and further characterizing the binoculars as completely waterproof and airtight.
The high-quality prisms made of BaK-4 optical glass and full multi-reflective coating of all optical surfaces provide a sharp, contrast and vivid image with proper color reproduction. The anti-reflective notch inside the tube reduces light scattering, which in turn has a positive effect on image clarity.
The SIGETA Asterial 25x100's Individual focus system ensures precise adjustments of sharpness - a feature which is important for people with various eyesight capabilities. The diopter correction is adjustable in the range from -4 to +4.
The kit contains protective caps for objectives and glasses, a neckstrap, a cleaning tissue for optics, and a sturdy hard carrying case for storage and safe shipping.
Features of a design: