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Thread: 2 EP for my ES 102 ED triplet

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    Default 2 EP for my ES 102 ED triplet



    I've only had my Refractor out once and was using my 1 1/4" Celestron Ultimas (35, 30, 18, 12). I think I want at least 2 EP's (will use the 12mm with the Ultima barlow for high power). I was pretty impressed with how the Ultimas worked, the 35mm was sharp edge to edge.



    My goal is to have edge to edge sharpness like I got on the U35mm (about a 2.5 Fov) but in a larger FOV with the 2" wide EP, and somethng like the 12mm in an 8mm or so.



    Don't want to spend more than $400 on both 2" EP's.



    What would you recommend. I'm using a red dot finder and want something in the 3.5 to 4 degree fov on the wide EP to use basically as a finder.



    Thanks.



    Jeff
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    Default Re: 2 EP for my ES 102 ED triplet

    Been thinking about your requirements for a few minutes and nothing leaps to mind that would satisfy all of them simultaneously.
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    Default Re: 2 EP for my ES 102 ED triplet

    Quote Originally Posted by not_Fritz_Argelander View Post
    Been thinking about your requirements for a few minutes and nothing leaps to mind that would satisfy all of them simultaneously.
    Me too. The only thing I can think of in a 2" around $200 is the ES 18mm 82° EP
    https://explorescientificusa.com/products/82-18mm

    You may want to look at some Baader Hyperion EPs cause many of them can be used as 1.25" & 2" configurations as my Baader 24mm does.....

    Good luck
    abb
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    Default Re: 2 EP for my ES 102 ED triplet

    The 2" EP I use the most with all of my scopes, including the ES 102APO triplet, is the ES 18mm 82. Absolutely a GREAT EP. Both my ES 30mm and 24mm 82s work well, but the 30mm is HUGE so the 24mm sees more use in that scope.
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    Default Re: 2 EP for my ES 102 ED triplet

    Yes. The main contradiction is that if he has young eyes and can get to 5.5-7mm pupil dilation then it's easy, get a 38mm-49mm 70 degree AFOV like the Ultima. If only 5.0-5.5 dilation is possible then that limits it to 35-38mm and wider AFOV which gets really expensive fast.
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    Default Re: 2 EP for my ES 102 ED triplet

    Quote Originally Posted by Ozman13 View Post
    The 2" EP I use the most with all of my scopes, including the ES 102APO triplet, is the ES 18mm 82. Absolutely a GREAT EP. Both my ES 30mm and 24mm 82s work well, but the 30mm is HUGE so the 24mm sees more use in that scope.
    But the 18mm ES 82* won't give a wider TFOV than the 35mm Ultima which is one of his requirements.
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    Default Re: 2 EP for my ES 102 ED triplet

    Quote Originally Posted by not_Fritz_Argelander View Post
    But the 18mm ES 82* won't give a wider TFOV than the 35mm Ultima which is one of his requirements.
    Maybe not, but it's a GREAT EP that fits in his budget that has a wide field of view and still gives generous magnification. Worthy of consideration.

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    Default Re: 2 EP for my ES 102 ED triplet

    Quote Originally Posted by Ozman13 View Post
    Maybe not, but it's a GREAT EP that fits in his budget that has a wide field of view and still gives generous magnification. Worthy of consideration.
    Regardless of whether it meets his stated requirements?

    That would seem to be illogical. To say that there is one perfect chicken for every pot is unreasonable if the pot belongs to a vegetarian or a confirmed beef eater.

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    Default Re: 2 EP for my ES 102 ED triplet

    It's starting to looking like the Something like the ES30 would be needed for the "finder" option. Since I will do mostly EAA with this scope, perhaps I skip the second 2" and just go with the 30mm 82 Degree. Hipoint has it for $259 and I could get 11 or 14mm for $160 putting me in Budget. I can barlow the Ultimas for high power. Heck even the Orion 38mm 70 degree would work.
    Last edited by Gx8ES102; 02-18-2018 at 06:55 PM.
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    Default Re: 2 EP for my ES 102 ED triplet

    Quote Originally Posted by Gx8ES102 View Post
    It's starting to looking like the Something like the ES30 would be needed for the "finder" option. Since I will do mostly EAA with this scope, perhaps I skip the second 2" and just go with the 30mm 82 Degree. Hipoint has it for $259 and I could get 11 or 14mm for $160 putting me in Budget. I can barlow the Ultimas for high power.
    Sounds like a plan. Good luck. That will get a little wider TFOV anyway....

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