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  1. #1
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    Default Eyepiece questions????



    Hi Guyz, quick question about Ethos eyepieces. I have a chance to get 3 Ethos EP's in 8mm, 13mm, and 21 mm. Would these be good on a Celestron Nexstar 8SE? They look so large and heave, can they work well on this scope and mount? I have a 2" diagonal so I can mount the 21mm which is only a 2" EP, would they work as well as they are capable of? Remember, great price for all three. Thanks in advance.

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    Default

    Honestly, for a SCT I wouldn't spend the money. Why? Because a Sct telescope does not have fast optics. This means they are forgiving when it comes to mid to low price ranged eyepieces.

    Where these Ethos eyepieces would really shine is in a telescope with really fast optics <f5 range.

    This is my opinion only. I am just going by what I have read on eyepieces. I'm sure one of our eye piece experts will chime in soon.

    Jim
    Celestron C9.25. Atlas EQG mount. Canon 500D unmodded, Celestron ST80 guide scope, SSAG, Meade 6.3 FR, Thousand Oaks dew control with Dewnot straps. Zhumell 8/24mm Zoom, 2"Gso Superview 42mm, Meade 2"QX wide angle 30MM, Meade 1.25 EP and filter set. Tasco 10x50 Zhumell 20x80 bino and a few other odds and ends.
    Now where did I put that clear sky button!

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  4. #3
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    Default

    I agree. For image quality, it's overkill.

    The only advantage I can see would be the big AFOV. But, to tell you the truth, I find 70 degrees to be plenty. I sometimes feel like I have to peer around a corner to see the field stop at 68 or 70 degrees. 80 or 100 degrees would be wasted on me.

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    pro; C-90 on wedge; 20x80 binos; Etc: Canon 350D; Various EPs, etc. Obs: 8' Exploradome;
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    (pier);
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  5. #4
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    Default

    I also agree. With an 8" SCT I think these would be overkill. However, you might want to entertain buying and reselling them if the deal is that good. Never turn down an opportunity to make a profit.

    Terry

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  6. #5
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    Default

    A high End eyepiece is NEVER a bad buy....because it will work. in cheap scopes as well as in expensive telescopes.... so no matter what telescope you have ..or may have in the future will work fine with a high end (expensive) eyepiece...

    However I sold my Naglers because my only eyes had to shift all over the FOV to see everything...So I now only use eyepieces that have a 68 to 70 degree FOV...I replaced them with not so cheap Pentax XW's and Panoptics...

    I;d definitely recommend you actually view with an ultra ultra wide FOV eyepiece and see if you are comfortable with it before writing any checks...

    That said I too run SCTS (and 8i ..which is an earlier model of what you ouw) and a CPC1100 and I own a few (mid level eyepeices (17 mm Orion Stratus and a 26 mm Meade 5000 SWA ..both of which cost me about 1/3 of what I spent for a Panoptic or a Pentax XW... and believe me preform very very well even when compared to the expensive stuff...

    On another subject...I do have a 8 mm eyepiece I carry when I use my 8" Sct and baby it sure does not get a heck of a lot of usage as it takes a pretty good night with good seeing for me to get up to 254x... PLUS at high powerer why do you want an extremely wide FOV...all that will do is make the object you are looking at appear smaller ... for high power views you are looking a a small area so there is no need for an extremely large backround (FOV_...

    The other two eyepieces are very very usable and if the rice is right and you can write the check and not look back Go for it...

    Just my opinion...

    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
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    2. make a heck of a lot of sawdust in my wood shop.

  7. #6
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    Default

    Thank everyone for the wonderful feedback. I do agree with what you all said, there were some excellent points. My reason for even tinking about these large "monsters" was because a friend was willing to sell all three to me for $1000 and they are all in original cases and look brand new. I figured I can keep or sell them to another AA that can really get full usage from them. $1500 shipped is a fair price I think?

 

 

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