NikopolL 发表于 2017-3-8 13:55

【新人求助】目镜购置 celestron skyprodigy 130

大家好, 我想请教一下这个镜子买什么目镜配置比较合适
celestron skyprodigy 130
焦长:650mm
焦比:5
口径:130mm
结构: 牛顿反射望远镜

前些天刚买了个ES 68 24mm,还有原装的9和25
想添置其他的目镜。刚刚开始学些天文望远镜的使用,打算先买3-4个目镜练习。
查了一下网上的介绍A Treatise on Optimizing DSO Observation,大概需要覆盖出瞳1mm, 2mm, 5-7mm。我也不知道这个理论合理吗,希望大家指点。
我主要是想学习天文知识,深空和行星都想接触。
很多人都说短焦的要买结构简单的,是不是就是不要买广角的?
如果想尽可能的覆盖比较全面的焦段,买哪些合适?
下面的是借用网上的模板填进去的数值。
希望有人能指点一二,谢谢啦{:3_208:}

Focal Length of Scope in millimeters (FLs)Aperture of Scope in Inches (APi)fRatio of ScopeAperture of Scope in mm (APm)Theoretical Max Useful Magnification (30 x APi), max 150Dawes Limit (arc seconds)Approx Visual Limiting magnitude ( 7.5 + 5 log aperture (in cm))Max Eyepiece Size in mm
6505.125.00130.048153.60.8913.134
Barlow Power2
Eyepiece Type/DescriptionEyepiece Focal Length (FLe)Eyepiece Apparent Field of View (FOV) °Exit Pupil mm (EX=APm/M)Eyepiece Power (M=FLs/FLe)Eyepiece True Field of View ° (T=FOV/M)Barlow FactorExit Pupil With Barlow (mm)
Baader zoom 24mm24.0504.8271.85542.4
GSO Plossl4.0520.81630.323250.4
Explore Scientific 824.7820.91380.592770.5
Pentax XW5.0701.01300.542600.5
GSO Plossl6.0521.21080.482170.6
Explore Scientific 826.7821.3970.851940.7
Explore Scientific 828.8821.8741.111480.9
Pentax XW10.0702.0651.081301.0
Explore Scientific 8211.0822.2591.391181.1
GSO Plossl12.0522.4540.961081.2
Explore Scientific 8214.0822.8461.77931.4
Explore Scientific 6816.0683.2411.67811.6
Explore Scientific 6820.0684.0332.09652.0
Explore Scientific 6824.0684.8272.51542.4
Explore Scientific 8224.0824.8273.03542.4
Explore Scientific 8230.0826.0223.78433.0

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