本帖最后由 edward0102 于 2010-1-22 15:44 编辑
谢谢帮顶,您入的那个是威信的吧,O(∩_∩)O~
星落原 发表于 2010-1-22 14:16
我入的是威信的, 沒錯~
剛好我最近在迷 ZOOM 目鏡, 入前有對其研究了一番...
目前國產主流的 ZOOM, 基本上有二:
1. ZOOM 7-21mm (MJ-44 款), 大多替 ORION-OEM (也有人說有替星特朗 OEM, 可是官網上找不到)
2. ZOOM 8-24mm (MJ-46 款), 大多替星特朗 OEM
以下是 ORION 給 ZOOM 7-21mm 的說明:
7-21mm Orion Explorer II Zoom Eyepiece
- Zoom eyepieces lets you change magnification power without changing eyepieces
- A twist of Explorer II's housing changes focal length from 21mm to 7mm
- Four-lens eyepiece has fully coated optics and exceptionally long eye relief
- The 1.25" barrel is threaded for filters
Now even the casual telescope user can enjoy the benefits of zoom eyepiece technology. A twist of the affordable 7-21mm Orion Explorer II Zoom Eyepiece housing changes the focal length from 21mm to 7mm, or to any focal length in between. That makes it ideal for locating an object at low magnification, then zooming in at higher magnifications for closer inspection. Without changing eyepieces! Actual magnification range will depend on the focal length of your telescope. It works equally well for astronomical or terrestrial viewing. This four-lens telescope eyepiece boasts fully coated optics and exceptionally long eye relief ranging from 33mm to 16mm. Apparent field of view is 30-deg at 21mm and 43-deg at 7mm. Rubber traction ring ensures a good grip. The 1.25" barrel is threaded for filters. A nice value in a quality zoom eyepiece!
以上我以紅/ 藍標注您關心的瞳距及視界說明, 這個在國內廠家/ 商家都沒標注...
以下是 ZOOM 7-21mm 的國內 OEM 製品圖 (注意有那條銀圈, 才是 MJ-44):
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