Product
Catalog 產品目錄
Binoculars
& Spotting scope 雙筒望遠鏡 及 觀景鏡
入 門 推 介 |
Objective
size: 50mm |
50mm binoculars is "all around binoculars". They're suited for backpacking, birding, boating, camping, hiking, hunting, nature study, sporting events, travel, and more. And, it's good for the astronomy beginners - you don't have to use it with a tripod or "mount". The 50mm
binoculars comes with the magnification options of 7x, 10x, etc. Porro
prism 10x50 waterproof wide angle with broadband multi-coating on objectives
are popular as a multipurpose binoculars in U.S. |
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8X42WPIII
$580 SPECIAL
PRICE
入
門 推 介
Lighter in weight than WPII for 250gm ! 8x42 WPIII/ 10x42 WPIII (nitrogen filled) Objective lens dia: 42 mm Magnification 8x, 10x Prism: Roof prism Bak4 Optic coating: Broadband fully multi-coated Waterproof: Yes Shockproof: Yes No Internal focus: Yes Triplet Objective: Yes Long eyes relief: Yes Field of view at 1000m: 8x-133m 10x-107m Exit pupil dia.: 8x-5.3 mm 10x-4.2 mm Exit pupil distance: 18.2mm Minimum focus distance: 8x-6 m 10x-8 m Net weight: 8x-700gm 10x-750gm Packing: Soft nylon case 8x42 & 10x42 Triplet WPIII |
Waterproof binoculars are dry nitrogen filled and sealed against moisture and fog. The roof prism 8x42 and 10x42 are waterproof with broadband multi-coating on objectives have dominated the optical market for hunting, birding and boating in Europe. Starting 2005, 8x42 and 10x42 WPIII are available. They are different from WPI in:
* Triplet objective (compared with the doublets objective of WPI ) All the waterproof binoculars come with Bak-4 prism, broadband multi-coating on the objectives, rugged rubberized metal bodies, all-glass lenses, right ocular diopter adjustment, brass 1/4-20 tripod adapter threading, case, caps, and strap. |
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20x80 TRIPLET
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20x80
triplet 三分離式
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7x50 & 10x50, individual focus with extra large eyepiece and enhance coating BAK4 prism |
7X50MS
軍用規格雙筒鏡 |
Ergonomic design, shockproof & waterproof |
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Produly presents: High quality, waterproof, shockproof, fully multi-coated, rubber armoured binoculars 7x50MS, 10x50MS, 10.5x70MS & 15x70MS
Grand
Eye Scientific Company is sourcing for the best binoculars manufacturer
after the famous Meade binoculars, which was also made in China. These
factories are all based in Kunming, Yunnan Province. Kunming is China's
production and export base for binoculars, telescopes and other optical
instruments. There are a number of state-owned factories in Kunming which
used to only produce for military use. After transition to market economy,
a lot of experienced engineers and sales staff just leave these state-owned
factories and start their own private optical instruments factories.
These privately-owned factories inherit all the asset of state-owned factories: the rich experiences in optics industry for more than 40 years, rigid quality control system, highly-skilled low-cost human resources, and all the used-to-be-only-for-army binoculars models-now totally oriented for civilian market. |
These
factories have the yearly production capacity of 800,000 units of binoculars
ranging from 21mm compact to 120mm giant. They have better R & D and
are the first who produced and supplied the popular models like 7X50M, 15x70,
20x80 & 25x100 to the international market. For example, in U.S. market,
Oberwerk Corp. is the exclusive distributor for the giant binoculars (56mm
up) Price of binoculars 全新高質素雙筒望遠鏡, 現己接受預訂 gesc@netvigator.com |
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Body
Length: 45 cm |
25x100 FB is for the amateur astronomers who are experienced in using
binoculars. The major difference between 25x100 FB and the 70, 80 and
90mm binoculars is the prism housing. The 25x100 FB's has better prism
mount so that the front prism and rear prism are in much better alignment.
Also, with the 25x100 FB prism housing, the objetive tubes are in perfect
parallel positioning with eyepieces. The
point is that the better collimation, the minimum prism light cutoff and
more even focus are achieved. |
New 25x100 binoculars comes with aluminum case |
Pop up eye cap, rigid focusing knob, fully multi coated lens and BAK4 prism |
SPECIAL OFFER |
Ergonomic design 8x32WP Ultra-portable, waterproof with front & rear cap Soft carry case 入 門 推 介 |
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Pop up eye cap, rigid focusing knob, fully multi coated lens and BAK4 prism |
SPECIAL OFFER |
Ultra-portable, shockproof & waterproof Soft carry case |
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10.5x70M Military Standard Binoculars comes with aluminum case, strap, and tripod adapter |
Individual focus, rigid design, rubber armoured & nitrogen filled usable in adverse weather, durable and maintenance free, 25mm extra long eye relief |
Limited
quantity offer Our price: HK$2,550 price in U.S. HK$2,925. 25% saving Astro-Physics Premium binoculars (PB105X70, PB15X70) |
Tripod adapter with 1/4-20 thread adapt to all camera tripod |
Military
standard binoculars, extremely durable, all weather conditions, a great tool
for nature observer, scientist and bird watcher, 7x50 & 8x40 Marine
8x40 marine binoculars with extra large BAK4 prism, shock resistant, build to military standard |
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Hard leather case comes with the binoculars |
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One of the most popular binoculars is the 70mm series binoculars. The 70mm
binoculars install Bak-4 prism, full broadband multi-coating, rubberized
metal bodies, all-glass lenses, right ocular diopter adjustment, improved
"slow-focus", brass 1/4-20 tripod adapter threading, case, caps,
and strap. And, with only 1.6 kg in weight, China made 70mm is one of
few hand-held giant binoculars for serious deep-sky viewing.
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ETX spotting scope 可能是最完美的 9 公分折反射鏡 |
ETX-90 (1.4kg) & ETX-125 (2.5kg) spotting scope |
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How to select the right binocular 如何選擇適當的雙筒望遠鏡 (courtesy from TAS)
有些人或許會覺得:看到一些天文同好們玩著大枝小枝昂貴的望遠鏡,
雙筒望遠鏡是有點玩具似的東西,其實不然,不管他有多 猛的炮,每一個業餘的天文同好都應該有一枝不錯的雙筒望遠鏡,而如果你和小潔一樣是一位剛入門的同好,而預算又不是很多 時,小潔倒建議你別把全部的錢一股腦投到鏡筒或赤道儀上,而應該買一枝不錯的雙筒望遠鏡和本星圖及幾本初學者的好書(更別 忘了來小潔的只要天文看看) [雙筒望遠鏡的結構] 一般市面上雙筒望遠鏡的結構,可不只是兩枝折射鏡裝在一起那麼簡單哦,現在的雙筒望遠鏡主要可以由稜鏡的型式分成2種類 型--屋頂式稜鏡(roof-prism)和普羅式稜鏡(porro-prism) 或許你會問:那一種比較好?只要是對雙筒望遠鏡了解的人都會告訴你 :"普羅式的",沒錯,在其他條件都一樣的情況下,普羅式的稜鏡的確比屋頂式更能夠提供你較為明亮.銳利.的影像 [普羅式雙筒望遠鏡]
Porro prism binoculars |
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[屋頂式稜鏡與普羅式稜鏡的分別] 屋頂式稜鏡,當然是長得像屋頂形狀的稜鏡(廢話!),有一層內面鍍上鋁(或其他金 屬,但通常是鋁)以反射由物鏡接收進來的光 ,而有一小部分的光便在這個時候損 失掉了,而造成了較暗的影像;相反地,品質夠好的普羅式稜鏡不需要反射的鏡面 便可以完全反射所收集到的光.而另一個屋頂式的缺點便是其高昂的價格,一部分 的原因起因於其在安裝時所需要的高精密度,就我們觀測星空而言,就算是最好. 最貴的屋頂式望遠鏡,其影像的品質仍然比不上同口徑的普羅式雙筒望遠鏡 |
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[你該知道關於雙筒望遠鏡的常識] [放大倍率&口徑] 所有的雙筒望遠鏡上至少都該有2個數字,像:7╳50或是11╳70等..要了解你的雙筒望遠鏡,當然要先知道這兩個數字所代表的意義 |
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很多人都有這種觀念:以為放大倍率愈大就表示這枝雙筒望遠鏡愈好,其實並不盡然,愈大的放大倍率雖然可讓你在望遠鏡裡看到愈 大的東西,而伴隨而來的則是較為昏暗的影像,當你想買雙筒望遠鏡時,最重要的便是考量你的用途及預算,來選擇一枝適當口徑&倍 率的雙筒 [光瞳徑(Exit
Pupil)] |
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[鍍膜(Coating)] 如果是想要選購一雙好的雙筒,其鍍膜也是很重要的,而鏡片釨端端的為什麼要鍍膜咧?其實是為了減少光線的散失(即增加透 光率)當一片未鍍膜的鏡片在光線通過時,會因為反射而有大約4%的光線散失,而如果在鏡片的兩面都鍍上一層薄薄的氯化鎂 MgCl2 其光線的損失率就可以減少到1.5%左右,所看到的影像當然也就明亮得多,也比較不會有炫光的產生, 而適當厚度的 MgCl2 鍍膜是呈現紫色的,如果太厚看起來就是綠色,太薄看起來會有點粉紅色的,而現在各雙筒望遠鏡廠商大部分都有自己的 一套多層鍍膜法,所以妳看到的雙筒望遠鏡鏡片就會有五顏六色啦,至於各家廠商的鍍膜如何還有優劣...這就不是小潔能力所及 的地方啦。不過有一點希望大家注意,大家或許都曾經在路邊攤或廣告裡看過那些看起來很厲害的"紅寶石鍍膜"希望大家不要被 騙啦,這種紅得發亮的鍍膜只會讓影像喪失原有的色調及變暗,反而會造成反效果。WingWing下 |
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