高質量雙目裝置 William Optics binoviewer
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Tel: 9638 3899 check for availibility and price |
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| Prism
material |
Bak-4 Fully multi coated |  |
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| Image pupil accodomation | 54-75mm | |||
| Clear aperture | 20.2mm | |||
| Eyepiece holder | Helical focusing, compression rings | |||
| Dimensions | 120x112x42mm | |||
| Optical path | 100mm | |||
| Weight | 520gm without eyepiece | |||
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William Optics
high quality binoviewer, 