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Thread: 18 mm ES82 - weapon for DSOs?

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    Default 18 mm ES82 - weapon for DSOs?



    I just bought one and its on its way for use in my 10" dob.

    So, it should give me 66x magnification, 3.79 mm exit pupil, a decent transit time - and so will look forward to trying this EP out on faint DSO's.

    I'd be interested to hear from those with some real world experience with this EP.
    AbbN, helicon64, MoosBros and 3 others like this.
    Ian
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    Default Re: 18 mm ES82 - weapon for DSOs?

    What do you want to know?

    If you have a dob and enjoy DSO hunting and observing, this eyepiece is rather hard to beat.

    It puts up 84x in my 12" f/5, and provide enough oomph to see most galaxies up to around mag 12 from my backyard.

    My typically process is to star hop via RACI, and then to finalize my positioning with the 18mm. On larger DSO's, this is where I'll stop. For the smaller stuff and the fainter stuff, I'll go to my 11mm from the same series, and sometimes further with the 8.8mm or even the 6.7mm.

    I refer to my 18mm and 11mm as my hunter/killer team.

    If I could only have one eyepiece, I'd choose my 18mm. Then I'd punch someone in the nose and grab the 11mm before running away.
    Bryan

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    Default Re: 18 mm ES82 - weapon for DSOs?

    Quote Originally Posted by kanadalainen View Post
    I just bought one and its on its way for use in my 10" dob.

    So, it should give me 66x magnification, 3.79 mm exit pupil, a decent transit time - and so will look forward to trying this EP out on faint DSO's.

    I'd be interested to hear from those with some real world experience with this EP.
    To date, the ES 18mm 82 is the best ep I've used in my scope.....excellent contrast, tack sharp and decent ER.....Still kicking my own butt for selling it...I shall have another....eventually....
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    Default Re: 18 mm ES82 - weapon for DSOs?

    Yikes ! ! ! - Somebody call a moderator - Bladekeeper's threatening to punch people ! ! ! Okay, time to get back on topic. The ES 18 is one of the best in its class, so I am sure that you will enjoy it. If you eventually get a similar focal length Ortho, you may never need anything else to cover every conceivable target at this range of magnification. Enjoy the new toy!
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    Default Re: 18 mm ES82 - weapon for DSOs?

    Quote Originally Posted by bladekeeper View Post
    What do you want to know?


    If I could only have one eyepiece, I'd choose my 18mm. Then I'd punch someone in the nose and grab the 11mm before running away.
    Technically, a 2x barlow isn't really an EP.... Ya, depending on the scope, most folks would be happy with just that one....
    bladekeeper and kanadalainen like this.

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    Default Re: 18 mm ES82 - weapon for DSOs?

    My ES 18MM is a killer EP combined with my 14inch SW dob. You should have some fun with it for sure
    -Teagan

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    Default Re: 18 mm ES82 - weapon for DSOs?

    I believe i would not have seen any galaxy without this one. Now, i take down most galaxies in a single shot with this killer . Thanks to the keeper of the Blade
    I hope you would enjoy it.

    Clear skies
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    Raihan


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    Default Re: 18 mm ES82 - weapon for DSOs?

    I always hunt with the ES 30mm and once object is found, I switch to the 18mm.
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    John...... Listentothestars.net

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    Default Re: 18 mm ES82 - weapon for DSOs?

    Quote Originally Posted by bladekeeper View Post

    If you have a dob and enjoy DSO hunting and observing, this eyepiece is rather hard to beat.
    It puts up 84x in my 12" f/5, and provide enough oomph to see most galaxies up to around mag 12 from my backyard.
    My typically process is to star hop via RACI, and then to finalize my positioning with the 18mm. On larger DSO's, this is where I'll stop. For the smaller stuff and the fainter stuff, I'll go to my 11mm from the same series, and sometimes further with the 8.8mm or even the 6.7mm.
    I refer to my 18mm and 11mm as my hunter/killer team.
    If I could only have one eyepiece, I'd choose my 18mm. Then I'd punch someone in the nose and grab the 11mm before runningaway.
    Wow... strong praise! Thanks Bryan... when I get good enough, I will try your methodology. Your statement reminds me of ancient ads from the 70's "I'd rather fight than switch"!
    1965tareytonad.jpg... we just need to fix the pic a bit to insert the EP.

    Quote Originally Posted by MoosBros View Post
    To date, the ES 18mm 82 is the best ep I've used in my scope.....excellent contrast, tack sharp and decent ER.....Still kicking my own butt for selling it...I shall have another....eventually....
    I found this one new at KW Telescope in Southern Ontario (awesome vendor btw)... I didn't realize they are discontinued?? Why...
    Explore Scientific 2" 82° Series Waterproof Eyepiece - 18mm


    Quote Originally Posted by MoosBros View Post
    Technically, a 2x barlow isn't really an EP.... Ya, depending on the scope, most folks would be happy with just that one....
    Nice!

    Quote Originally Posted by Raihan View Post
    I believe i would not have seen any galaxy without this one. Now, i take down most galaxies in a single shot with this killer . Thanks to the keeper of the Blade
    I hope you would enjoy it.
    Clear skies
    Up to this point I feel like I've been slightly "undergunned" for a seeker/killer EP for DSOs, which is not helped by my inexperience. Studying the charts links provided by this forum in another thread will certainly help.

    Quote Originally Posted by My 2 Stars View Post
    I always hunt with the ES 30mm and once object is found, I switch to the 18mm.
    Thanks! I'll try to set up a method that gets me there. Nice dob you have, too.
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    Default Re: 18 mm ES82 - weapon for DSOs?

    Quote Originally Posted by Trombatissimo View Post
    Yikes ! ! ! - Somebody call a moderator - Bladekeeper's threatening to punch people ! ! ! Okay, time to get back on topic. The ES 18 is one of the best in its class, so I am sure that you will enjoy it. If you eventually get a similar focal length Ortho, you may never need anything else to cover every conceivable target at this range of magnification. Enjoy the new toy!
    https://giphy.com/gifs/dog-pizza-hot-dog-1Ju5mGZlWAqek
    Thanks! This feedback is really useful. IMHO, spending $$ on EP's is acceptable if the quality and utility is there e.g., a proper chance to go chase DSO's with a modicum of success.
    Ian
    Scopes Celestron - Vixen 80 f11.3 on a Vixen alt/az mount and an Orion dob XT10i f4.7
    Binoculars Asahi Pentax 7x35 and 7x50, Beck Kassel 8x30 and Celestron 15x70 Camera Nikon D90 with Rokinon 10mm
    Eyepieces: Leitz Periplan GF, ES68s, ES82s, TV Naglers, Meade 4000 super plossl, Nikon CFI, Olympus FK, Paracorr I, Abbe Orthos: Carl Zeiss Jena K7x (35mm), K10x (25mm)
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