HAHAHA!I find what BPOC mean[转帖]

hemanchu · 发表于 2002-12-7 07:13

Designed for terrain orientation and observation of distant objects, circus, sport and other shows. All models of glasses are produced in Russia. Letters and figures in the name of each model show type, magnification and diameter of enter pupil. The types of binoculars are determined by their optic scheme. The letter "B" means binocular, "

" - prismatic with reverse system Porro, "C" - binocular with central focusing system, "O" - with magnified exit pupil distance, "K" - with reverse roof prism system, "F" - with inside focusing of eyepiece. BPO 7x30 - its main peculiarity is very large exit pupil distance that allows easy handle of binocular for glass wears. BKFC 7x35 is very compact and nice looking binocular with roof-prism system. It has an original design. BPC 20x60 has a high resolution. It is very suitable for detailed observation of distant objects at weak light conditions.

hemanchu · 发表于 2002-12-9 17:27

大家没反应吗？我家里的机子没有中文输入，所以帖上英文的。
 大家有俄镜的都应该会发现，俄镜的倍率*口径标志前一般都有个BPC、BPOC的字样，这回在rusgoods找到了解释。
 "B"表示双眼望远镜，"

" 表示普罗棱镜，"C"表示镜子用的是中央调焦方式，"O"表示有长出瞳径，"K"表示为屋脊棱镜， "F"表示目镜内调焦方式。
 比如全天候7*30为BPO；
 屋脊袖珍7*35为BKFC等等。

timedoor · 发表于 2002-12-9 23:51

您老辛苦了，还有什么新发现呢？