The Soligor Silver Line 8×22 is a compact binocular offering 8× magnification and 22 mm objective lenses. Its folding design and weight of approximately 220 g make it easy to take on walks, mountain hikes, trips or visits to the theatre. This model is primarily intended for daytime observation.
The binoculars feature BaK-4 glass roof prisms, central focusing and multi-layer anti-reflection coatings (MC). The field of view is 7.3°, and focus can be adjusted from 5 m to infinity.
• 8× magnification and 22 mm objective lenses
• folding roof prism design with BaK-4 prisms
• central focusing
• multi-layer anti-reflection coatings (MC)
• 7.3° field of view
• weight of approximately 220 g
• Soligor Silver Line 8×22 binoculars
• carrying case
• binocular strap
• optics cleaning cloth
• objective lens diameter: 22 mm
• magnification: 8×
• prism system: roof
• prism material: BaK-4 glass
• exit pupil diameter: approximately 2.8 mm
• angular field of view: 7.3°
• anti-reflection coatings: MC, multi-layer
• focusing: central
• focusing range: from 5 m to infinity
• folded dimensions: 95 × 44 × 67 mm (according to the archived description)
• unfolded dimensions: 96 × 36 × 107 mm (according to the archived description)
• weight: approximately 220 g
PDF guides in Polish.
Choosing binoculars — a guide [PDF]
A short guide to cleaning optics [PDF]
What does 8×22 mean?
The first number indicates 8× magnification, while the second is the objective lens diameter of 22 mm. This model has fixed magnification.
Are a carrying case and strap included?
Yes. The set includes the binoculars, a carrying case, a binocular strap and an optics cleaning cloth.
What are MC anti-reflection coatings for?
MC coatings are multi-layer anti-reflection coatings. They reduce reflections from optical surfaces, limiting light loss and helping improve image contrast.
What does BaK-4 glass mean?
BaK-4 denotes the type of glass used to make the prisms. Image quality also depends on the optical design, coatings, manufacturing precision and alignment of the optical components.
Are 8×22 binoculars suitable for twilight observation?
This model performs best in daylight. Its small exit pupil of approximately 2.8 mm limits image brightness in low-light conditions.
What are the exit pupil, relative brightness and twilight factor?
The exit pupil is the image of the objective lens seen from the eyepiece side as a bright circle. For the nominal 8×22 specifications, the following values can be calculated:
• exit pupil diameter: 22 / 8 = 2.75 mm, or approximately 2.8 mm
• relative brightness: (22 / 8)² ≈ 7.6
• twilight factor: √(8 × 22) ≈ 13.3
Relative brightness and twilight factor are calculated indicators. They do not account for light transmission or the quality of the optics.
