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    rollyro's Avatar
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    Default Explore Scientific 68* EPs



    Does anyone have any experience with the 68* Argon purged series from Explore Scientific? Thanks.
    Orion xt10 Dob, Meade 5000 series 5.5mm Plossl, 10 and 25mm Sirius Plossls, Orion 32mm Highlight Plossl, 82* Explore Scientific 14mm 82, and Zhumell 2x ED Barlow on the way.

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    Default

    They are really good, I like them better than the 82* which is a really good series.
    I use the 28mm as my main finder EP.
    15 inch Obsession
    Low Power: ES 28mm ~60x @1.1° : Televue Delos 17.3mm ~100x @.72°
    Medium Power: ES 14mm ~122x @.82° : Televue Delos 10mm ~170x @.42°
    High Power: Televue Delos 6mm ~285x @.25° : ES 4.7mm ~365x @.22°

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    rollyro (04-17-2012)

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    Default

    I had the 34mm and liked it a lot. I sold it when I decided to get all the ES82s. I also preferred the 68 in my SCT because the field curvature of the C8 is less apparent with 68 than the 82. But, I found the 82 preferable in my Dob.

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    rollyro (04-17-2012)

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    Default

    Quote Originally Posted by randyroy View Post
    I had the 34mm and liked it a lot. I sold it when I decided to get all the ES82s. I also preferred the 68 in my SCT because the field curvature of the C8 is less apparent with 68 than the 82. But, I found the 82 preferable in my Dob.
    That statement is interesting because I last owned a Dob more then 10 years ago and now use Scts and Refractors and I sold off my Naglers and converted over to Panoptics for lower powers and Pentex XW's for high and medium powers...for exactly the same reason(s) field curvature and pin cushion ..

    Now I have to sit down and figure out if it is my aging eyeballs or the type of scope that caused me to dispose of my 82 degree eyepieces in favor of the narrower 68-70 FOV eyepieces..


    Bob G.
    CPC1100 housed in a slotted domed observatory (Exploradome) 4 and 5 inch refractors for use from the lawn, a 8" Sct (NS 8i) for star parties...
    I Hate the winter so I use heated Motorcycle clothing to stay warm while observing in winter
    Retired, also have 2 other hobbies
    1. tinker with older Corvettes (6 in garage)
    2. make a heck of a lot of sawdust in my wood shop.

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    rollyro (04-17-2012)

  8. #5
    deimos3428's Avatar
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    Default Re: Explore Scientific 68* EPs

    I recently purchased the 16mm 68* and it's my new favorite EP. Open clusters "pop" in a way they don't with my celestron kit plossls, and the eye relief is significantly improved. Even faint objects in my heavy LP looked like objects, not chance groupings of stars.

  9. #6
    aatt's Avatar
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    Default Re: Explore Scientific 68* EPs

    I just got the ES 34mm 68 and it is a very good EP.

  10. #7
    Alan Sheppard's Avatar
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    Default Re: Explore Scientific 68* EPs

    What is the eyerelief, I have glasses?

    Thanks - Alan

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    deimos3428's Avatar
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    Default Re: Explore Scientific 68* EPs

    According to ES, it is 11.9mm, which really isn't that much. But it seems like more. *shrug* (I also wear glasses but I do take them off while observing.)

  12. #9
    Alan Sheppard's Avatar
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    Default Re: Explore Scientific 68* EPs

    I have new Celestron Ultimas LX 2", has 14mm. Does not seem like a lot, but OK!

 

 

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