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Thread: Tele Vue Delos or Ethos

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    Default Tele Vue Delos or Ethos



    I've had my XT8 for three days now and am having fun with it but I’d like some better EPs. I know that with an f/5.9 I don’t need the greatest EPs around but that’s what I want. As I’ve read here and elsewhere while I may eventually grow out of my scope I’ll never grow out of a good eyepiece, so I want to plan for the future.

    I’ve boiled it down to Tele Vue’s Delos or Ethos lines. My concern with the Ethos, besides price, is that they’ll make my Dob to front heavy. Not sure how one goes about balancing a scope for that. Another thing is all of my current color filters are 1.25”, if I went Ethos I’d have to buy new 2” filters.

    The problem with the Delos is that they don’t have as wide of view as the Ethos, which means more tracking. I don't really like tracking all that much, instead of being able to observe the craters on the Moon I keep having to move my scope.

    As far as price goes if I went with Ethos I’d only buy one for now, probably the 17mm. If I went with Delos I’d buy two, not sure what those two would be.
    Factoring in my concerns what would y’all say the best long term investment would be?

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    Default Re: Tele Vue Delos or Ethos

    Welcome to the forum. I can't say much about either EP since I have neither, but as far as scope balance goes you can purchase heavy magnets ( like these Magnetic Round Base) to help balance the scope with heavy EP's. If your OTA is metal they work great and will stick right to it. Sounds like you are off to a great start purchasing excellent quality EP's.
    Last edited by warmvet; 08-24-2012 at 05:38 AM.
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    Default Re: Tele Vue Delos or Ethos

    Has your dob not got the tight-fitting handles?so you can balance the scope with haver ep.

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    Default Re: Tele Vue Delos or Ethos

    ehh... I wouldnt call 72* of fov a problem. Its not like if you buy the ethos you dont have to move your scope to track, you still do.

    Optically they are both top notch.
    Delos = wide field + best eye relief.
    Ethos= widest field, average eye relief
    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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    Default Re: Tele Vue Delos or Ethos

    There shouldn't be any problem with balance. I have the ES 14mm 100 degree and I don't need any weights. I'm not certain about the 17mm but the 13mm Ethos is far lighter than my 14mm.
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    Default Re: Tele Vue Delos or Ethos

    A) you can get the *ES100 relatives of the Ethoi for 35%-40% of the cost of an ethoi, and pretty close to the same optical excellence.
    B) colored filters are failry useless, excepting for certain features on Mars. Now UHC, OIII, HB, HA,... filters are useful for various nebulae.
    C) balance can be achieves with a bean bag filled with led pellets and velcro attached to the bottom of the tube.

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    Default Re: Tele Vue Delos or Ethos

    I wish more ethos owners would give reports on this forum.
    My experience with nagler designed eyepieces has transformed my visual experience manyfold.
    Mr. Nagler has obviously created the standard, and most information and reviews I have read indicate the ethos
    reach into a new realm.

    The cost has me backtracking however. To put a premium on visual eyepiece experiences has it price, and it is a hefty one.

    I am serious contemplating a lower power ethos eyepiece but just can't pull the trigger yet.

    thanks,

    billy
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    Default Re: Tele Vue Delos or Ethos

    Ethos can't be denied...just wish I could see the ES 100. I volunteer on weekends at our local OBS and we have a 25" Obsession that frequently is only used with a 23mm Ethos...closest thing I have seen to Astro-photography in visual. In the reviews I have seen on the ES 100's, I would definitely consider those, just because the Ethos cost as much as my current Telescope. If price is not a factor and I could afford just one...it would be an Ethos. Maybe after I get to see an ES 100 I may change my mind, until then, Ethos is king.

    But, how much of it is the 25" Obsession? It is quite the telescope, it cost as much as my car...I believe my opinions may be skewed. You might be better off never looking through an Ethos...the beautiful, almost 3D like view of the Veil nebula will for ever be stuck in my mind!
    Jim
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    billykkutter (08-24-2012)

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    Default Re: Tele Vue Delos or Ethos

    Quote Originally Posted by billykkutter View Post
    I wish more ethos owners would give reports on this forum.
    I am currently replacing my Naglers (T1 and T2) with Ethoi. I have already replaced the 20mm NT2 with 21E and the 13NT1 with 13E. I did a lot of back to back comparisons. In my 20" F/4 the Ethoi are obviously better corrected (that is the stars are smaller dots from the same FL EPs.)
    The Ethoi seem to transmit just as much light as the <older> Naglers.

    I am currently waiting to replace my 31NT5 with a 25mm ES 100 (if it every arrives) (Exit pupil issues with 31mm at F/4.)
    billykkutter likes this.

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    Default Re: Tele Vue Delos or Ethos

    I may have something to say about Delos in a few weeks. I haven't looked through an Ethos yet. I decided to get the ES100s and am happy, with them. Don't want to disturb that just yet...

 

 
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