The BS77iA by Miyauchi©
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The Miyauchi BS-77iB is a highly portable, very high quality ø77mm 45° angle of view semiapochromatic binocular. The compact size and versatility of this binocular sets it apart from binoculars of the same aperture. The BS-77 employs a four element Petzval semi-apochromatic objective to deliver sharp high contrast images of deep sky objects. Interchangeable oculars set the BS-77 apart from competitive models. The BS-77 Exceed is fully multicoated for increased contrast. Product # MIA1006 *See Price List for Pricing Information. |
SPECIFICATIONS for the BS77iA
| Optical System: | Semi-Apochromatic/Petzval, ø77mm F/5.2, 400mm , 4 element, 3-groups |
| Body Construction: | Duraluminum [Marine grade] |
| Standard Ocular: | 20x -- 2.5° |
| Dimensions | 12" x 7" x 3.5" |
| Weight | 2.5kg [5.5lbs] |
| Case [optional] | Waterproof/Airtight ABS |
Oculars for the BS-77
| Magnification | Eye Relief |
Field
of View
|
|
| Apparent | Actual | ||
| 20x | 20mm | 50° | 2.5° |
| 30x | 14mm | 66° | 2.2° |