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Thread: Great calculator for eyepieces

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    Default Great calculator for eyepieces



    Hi everyone, I find this eyepiece maths calculator to be superb. Magnifications, exit pupils, FOVs, transit times, everything is worked out for you. Take a look.

    N.A.A. Telescope Math Calculator
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    Paul
    36.85 S 174.57 E
    12" GSO Dobsonian
    Orion 180mm Maksutov-Cassegrain, 8" Richey-Chretien, HEQ5Pro mount
    Explore Scientific 30mm, Baader Hyperion 24mm, 17mm & 8mm, Pentax XW 10mm, TV 2x Barlow

  2. The Following 4 Users Say Thank You to 47Tuc For This Useful Post:

    HarryBnBad (12-18-2011),KT4HX (12-21-2011),mike1959 (09-08-2012),srrose (12-18-2011)

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    Default

    Yep, that's the one I use as well. I think it's a great tool.

    Clear skies,
    GSO 12" f/5 Dob
    Explore Scientific 4.7mm 82°, Explore Scientific 11mm 82°, Explore Scientific 30mm 82°, GSO 30mm 2" 70°, GSO 2" x2
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    Default

    Hi mzu, I see from your signature that we have more in common than just that calculator. I used to have the 14mm Explore Scientific eyepiece. Unfortunately with my eyeglasses it didn't have enough eye relief so I reluctantly had to sell it.
    Paul
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    Default

    Well, I don't wear glasses when viewing so I don't have that problem. It is true that the eye relief could be a little more. All in all they are great EP's that give very sharp and clear images. I just love them. I'm still looking for a medium EP but don't know if I should get the 18mm or 14mm ?
    GSO 12" f/5 Dob
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    Default

    Quote Originally Posted by 47Tuc View Post
    Hi mzu, I see from your signature that we have more in common than just that calculator. I used to have the 14mm Explore Scientific eyepiece. Unfortunately with my eyeglasses it didn't have enough eye relief so I reluctantly had to sell it.
    One nice thing about the Tele Vue Ethos eyepieces is that they have the ability to use Dioptrix so you get the right Dioptrix and you probably could use them without glasses.

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    Default

    Cool,

    Thanks, I think....To be honest, being as new to this as I am. It may have confused me abit. But, I'll study it more, and I think It will help me in the future. Even though it seems that some of the terms I heard people using on this site now kinda makes a little sense...THANKS

 

 

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