STS 80HD + 25-50X EYEPIECE

The STS 80 HD pairs a large 80 mm objective with a straight-through body for razor-sharp detail and outstanding light-gathering, even at high magnifications. Combined with the 25-50x W wide-angle zoom eyepiece, it delivers contrast-rich, colour-faithful images from the pre-dawn hours through to sunset, making it an exceptional companion for birding and long-range observation.

Features

• HD fluoride optics: extra-low dispersion fluoride glass minimises chromatic aberration for crisp, colour-faithful images with razor-sharp outlines.
• 25-50x W wide-angle zoom: an aspherical-lens eyepiece delivering edge-to-edge sharpness across the full zoom range.
• Large 80 mm objective: excellent light-gathering for bright images in low light and at high magnification.
• SWARODUR and SWAROTOP coatings: minimise glare while maximising contrast across all lenses and prisms.
• Straight-through viewing: intuitive aiming, well suited for tracking moving or distant subjects; ideal for digiscoping.
• Rugged and weatherproof: nitrogen-filled, waterproof housing built for the field.

Specifications

• Magnification: 25-50x
• Effective objective lens diameter: 80 mm
• Exit pupil: 3.2-1.6 mm
• Eye relief: 17 mm
• Field of view: 138-89 ft at 1,000 yds
• Closest focusing distance: 16.4 ft
• Length: 335 mm
• Weight (body + eyepiece): 1,625 g