Pentax Binoculars

This is a Pentax 10 by 50 S-series waterproof binoculars for terrestrial and astronomical use. Notable features are: excellent quality optics, waterproof (nitrogen-filled), multi-coated lens for improved light transmission with special hydrophobic coating to prevent water and dust from sticking on glass, stable and solid built, internal focusing mechanism with focus lock, with diopter adjustment to accommodate variations in focusing of the eyes, and equipped with socket for mounting with a tripod.

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Night Sky in Focus | Astronomy and Amateur Radio
© Anthony Urbano | Manila, Philippines