看到最新的一些说明,在月球和行星之外不推荐用巴罗,用最广角目镜即可,还有一些双目使用的特点
8 L7 E2 ?+ H- z. p9 r8 N8 }天文论坛,天文,望远镜,天文望远镜,apo,ed,televue,tv,tmb,高桥,ap,tec,望远镜评测,望远镜测评,双筒望远镜,天顶,目镜,望远镜配件,赤道仪I'd be very interested in learning which eyepieces others have found to be
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> the best. Roland, what is the theory behind binoviewer quality viewing?
天文望远镜器材评测和交流论坛! V5 s9 R- n) [ u- q
$ F3 R, D5 h5 H0 {# j3 P天文望远镜器材评测和交流论坛& _' u9 P/ x% j; n0 P! }% ~" c* W+ n
国内专业的天文望远镜器材评测和交流论坛,致力于如高桥、televue、tmb、ap、tec等顶级望远镜和附属器材+ }) u) I; n3 X# d) [2 ]6 ]. v8 X4 w& j+ c
Field stop size has no bearing on Binoviewing. Any high quality eyepiece will
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work well. The binoviewer is limited to 125" eyepieces and will cover any
天文论坛,天文,望远镜,天文望远镜,apo,ed,televue,tv,tmb,高桥,ap,tec,望远镜评测,望远镜测评,双筒望远镜,天顶,目镜,望远镜配件,赤道仪1 \9 }9 V1 j, M. `+ d
eyepiece of that size.
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1 e& G" I* L( AIf you want high power for Lunar/planetary, then do most of the magnification
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ahead of the bino. Why magnify the defects of almost 5 inches of prism path
; _. Q+ q, G2 f8 X* i( Y国内专业的天文望远镜器材评测和交流论坛,致力于如高桥、televue、tmb、ap、tec等顶级望远镜和附属器材length? The defects in the Baader bino are small but not zero. A Barlow ahead
' ~; F/ u+ N2 r$ o5 u天文家园欢迎您!of the Bino will reduce the power needed at the eyepiece end. Remember, a 25mm
. C: g3 X" y. v4 _( D# c) Q. H天文望远镜器材评测和交流论坛eyepiece will magnify the image along with all the defects of the prism by
天文论坛,天文,望远镜,天文望远镜,apo,ed,televue,tv,tmb,高桥,ap,tec,望远镜评测,望远镜测评,双筒望远镜,天顶,目镜,望远镜配件,赤道仪+ J& @0 v5 ~7 v& X
10x. A 5mm eyepiece will magnify the image plus prism defects by 50x - 5 times
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more than the 25mm eyepiece. If you put a 3x barlow ahead of the Bino, then you
0 @; B, [2 L# |4 U# s天文望远镜器材评测和交流论坛only have to magnify the image at the eyepiece end by 16 times to get the
8 s) l! y( ? W5 y! Q天文家园欢迎您!same power that the 5mm, 50x eyepiece gave you without the Barlow. The view will
* z& L1 t+ D* C" j* o4 E9 x2 A, w# ~天文家园欢迎您!be clearer and cleaner, and on top of that, there will be more chance that
' k$ [+ B# u9 u) b: ]$ j国内专业的天文望远镜器材评测和交流论坛,致力于如高桥、televue、tmb、ap、tec等顶级望远镜和附属器材your eyes can merge the two channels.
天文论坛,天文,望远镜,天文望远镜,apo,ed,televue,tv,tmb,高桥,ap,tec,望远镜评测,望远镜测评,双筒望远镜,天顶,目镜,望远镜配件,赤道仪. t$ T5 w6 t& W E
1 _5 i9 A2 G8 e) kFor low power viewing, of course the Barlow is not needed at all, and you
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want to use the widest eyepiece that you have.
天文论坛,天文,望远镜,天文望远镜,apo,ed,televue,tv,tmb,高桥,ap,tec,望远镜评测,望远镜测评,双筒望远镜,天顶,目镜,望远镜配件,赤道仪5 g1 R8 Q2 [* e& i) T
2 T3 U8 H3 i; B9 K天文家园欢迎您!Roland
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本帖最后由 siqingtan 于 2008-8-29 23:49 编辑 ]