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40x100 binoculars for astronomy Semi-apo tripot objective, 27 layer max-transsuper multi-coating on allair to glass surfaces Inter-changeable eyepieces (standard accessory 20x, optional 30x, 37x) Retractable lens shades Lens covers Removable carrying handle aluminum, 1/4 20 tripod adapter (built-in) Sturdy aluminum construction Comfortable right angle viewing 20x eyepieces has a 52 degree F. O. V., The 40x eyepieces has a 66 degree F. O. V. The eyepieces and objectives are matched to produce superbly sharp images.
Model | Eyepieces | Field of view | Eye Relief mm | Exit Pupil mm | Weight
| ||
angle | M/1000M | FT/1000YDS | |||||
20X100 | 20X | 2.2° | 39 | 117 | 22.6 | 5 | 3.9KGS |
30X | 2.8° | 50 | 149 | 15.5 | 3.33 | ||
40X | 1.4° | 25 | 75 | 12.3 | 2.7 | ||