Binoculars 20x50 Bassell Black
The Bassell 20x50 binoculars are a classic, fully-coated 20x model with BK-7 Porro glass prisms and a tough, impact-resistant rubber-coated body for better grip and protection against dirt and moisture. A competent combination of plastic and metal parts provided the body of the device with the necessary structural rigidity and the absence of backlashes inherent in classmates in this price segment. All elements are carefully adjusted, the structures move smoothly, without jerks.
FocusBassell 20x50 binoculars are center mounted. The focus wheel is large, with a comfortable notch. The stroke is smooth and short, from lock to lock the drum makes one revolution. Provided in the design and diopter adjustment. Adjustment in accordance with all the nuances of your vision is made by the regulator on the right eyepiece. Adjustment is standard - in the range of +/-5 diopters. The eyecups of the eyepieces are comfortable and soft, they can be easily turned back and forth for more comfortable work with binoculars.
Characteristics:
Manufacturer: Bassell
Prism type: PORRO
Magnification, multiple: 20
Exit pupil diameter, mm: 2.5
Lens diameter, mm: 50
Linear field of view, m/1000m: 137
Optics material: BK-7 glass
Field of view angle, degrees: 7.8
Focus: Center
Shell material: rubber, aluminum alloy, ABS plastic
Package contents: carrying bag, napkin, protective covers, neck strap, instructions
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The field of view of the binoculars is 137 meters at 1000 metersV. Fairly large lenses provide optimal light output and good color reproduction. Negative aberrations are negligible.
A rather decent weight (850 grams) does not make hand-held observation particularly comfortable, so Bassell 20x50 binoculars have a socket for a tripod L-adapter.
The rubberized housing does a good job of protecting the device from atmospheric precipitation, but it should be borne in mind that the binoculars are not completely sealed and full-fledged water procedures are extremely contraindicated for them.