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  1. #1
    MLaferriere's Avatar
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    Default ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?



    Hello Folks.
    I have an ES102 apo with 18mm and 25mm eyepieces. The scope has a 714mm focal length.
    I have been dabbling in AP and thought a barlow would be nice but at this point in learning I think that in addition to doubling the magnification it would also double my tracking issues as well. So, I figured for visual the ES 6.7mm 82° eye piece would work nice. This would yield 107X and eventually when I get the barlow it would be at the scopes limit. The barlow would then give me 25, 18, 12, 9, 6.7 & 3.35mm lengths to choose from.
    Then when reading on here people have pointed out how versatile the Meade 8X24mm zoom lens is and how convenient it is to just give it a twist to adjust power instead of fumbling around and possibly dropping an eyepiece and having it roll downhill and possibly into a rabid chipmunk hole.
    The ES 6.7mm eyepiece is currently on sale for $99 (free shipping) until the end of August. The Meade zoom eyepiece appears to be back ordered on all but Meades own website (said to receive within one to two weeks via ground). I know if I order the ES eyepiece I will likely get it either next week or this friday.
    Grrr, too many decisions! Any thoughts on which accessory would see the most use? The ES 82° eyepieces are parfocal so I should be able to swap them without having to aim on a bright star and re-focus with the bahtinov as well.
    Explore Scientific 102mm apo, Orion ST80A, Celestron C90, Canon 50mm F1.8 lens, Celestron 8X42 Nature DX
    CG-5 GT, Explore Scientific Twilight 1, & half a barn door mount (almost finished), Canon 7D, Orion Magnificent Mini AutoGuider, ZWO ASI120MC-S
    ES 82° 2" 6.7mm, 18mm, 30mm, Meade Series 4000 1.25" 25mm plossl, & Celestron 1.25" 32mm plossl eyepieces.

  2. #2
    AbbN's Avatar
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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    Hi,

    I have a Meade zoom and it's great on all my scopes including my ES AR102 - there's good reviews on it in this forum. Recently I've been starting to buy good quality single EP's as you'll see in my signature. I almost bought the ES 6.7mm 82° you mentioned but went for the ES 4.7mm 82° instead, but was only because I have a pretty good quality Barlow as well.

    There's my 2 cents - good luck with whatever you chose

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    Dob; Orion Apex 102 Mak; Coronado PST. EP's: ES 4.7, 6.7, 11, 18 and 30mm 82° EPs; Baader 24mm 68°; Luminos 15mm 82°; Meade 8-24mm Zoom. Other: CG4+16" Orion Pier Extension; Celestron 20x80 binos etc;

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  4. #3
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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    After buying my first serious scope a few months ago I spent some money on a zoom eyepiece, thinking that I would be using it a lot. For a while I did, but now that I have experienced the FOV of the ES 82s (I have the 14mm and the 11mm and will probably get the 6.7mm shortly) it hardly ever comes out anymore. I guess it is a personal thing whether you find the "toilet roll"-effect of eyepieces with a narrow FOV disturbing or not.

  5. #4
    MLaferriere's Avatar
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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    Hello AbbN.
    Which Barlow did you go with?
    I figured I'd use the 6.7mm more than the 4.7mm as when both of these are barlowed, the 6.7 would be right at my scopes max and the 4.7mm would be just past it. Are these max magnification limits just for sky use or terrestrial as well? I'm sure the 4.7mm alone would yield better views than the 6.7mm barlowed though.

    Quote Originally Posted by AbbN View Post
    Hi,

    I have a Meade zoom and it's great on all my scopes including my ES AR102 - there's good reviews on it in this forum. Recently I've been starting to buy good quality single EP's as you'll see in my signature. I almost bought the ES 6.7mm 82° you mentioned but went for the ES 4.7mm 82° instead, but was only because I have a pretty good quality Barlow as well.

    There's my 2 cents - good luck with whatever you chose
    Explore Scientific 102mm apo, Orion ST80A, Celestron C90, Canon 50mm F1.8 lens, Celestron 8X42 Nature DX
    CG-5 GT, Explore Scientific Twilight 1, & half a barn door mount (almost finished), Canon 7D, Orion Magnificent Mini AutoGuider, ZWO ASI120MC-S
    ES 82° 2" 6.7mm, 18mm, 30mm, Meade Series 4000 1.25" 25mm plossl, & Celestron 1.25" 32mm plossl eyepieces.

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    AbbN's Avatar
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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    Quote Originally Posted by MLaferriere View Post
    Hello AbbN.
    Which Barlow did you go with?
    I figured I'd use the 6.7mm more than the 4.7mm as when both of these are barlowed, the 6.7 would be right at my scopes max and the 4.7mm would be just past it. Are these max magnification limits just for sky use or terrestrial as well? I'm sure the 4.7mm alone would yield better views than the 6.7mm barlowed though.
    Hi

    I have a 3 element Orion Short Plus Barlow which unfortunately doesn't seem to be available at the moment - it's very sharp and I'm extremely happy with both it and my 4.7mm lens Yes, my 4.7mmdoes give a better/wider view than my Meade Zoom barlowed at 8mm but I still use the barlow with my zoom at times, depending on the scope I'm using and what I'm viewing. If my barlow wasn't that good I would have gone with the 6.7mm instead.

    Goof luck!

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    Dob; Orion Apex 102 Mak; Coronado PST. EP's: ES 4.7, 6.7, 11, 18 and 30mm 82° EPs; Baader 24mm 68°; Luminos 15mm 82°; Meade 8-24mm Zoom. Other: CG4+16" Orion Pier Extension; Celestron 20x80 binos etc;

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  8. #6
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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    I have been using the 6.7 82 degree ES for a bit and it seems a very good ep. I haven't owned or even seen through the various zooms, so I can't comment on that, but I am pretty sure I wouldn't want to lose the FOV. Also, I use the 2" GSO ED Barlow (branded Z****) and it works fine with the 6.7 and the 24mm. Next on my list is the 18.
    Sky-Watcher PRO 120 ED/CGEM, ZWO guide camera in a mini 50 guide scope, Moonlight 2.5" focuser. Stellarvue 80mm
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    , lots of Stellarvue and AMD goodies Orion ED80T CF as a widefield imaging scope and also as a Grab-and-Go, sitting opposite an Orion 120 mm f/5 refractor with two-speed focuser on a Twilight II mount. Eyepieces: ES "82" 24mm, 18mm, 6.7mm; GSO ED 2-in 2x Barlow; Canon EOS T2i; a really old laptop, field flattener, filters, 20-foot cables, cords, battery-packs, adapters, and more junk every week
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    MLaferriere's Avatar
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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    I ordered the 6.7mm so we can expect crystal clear, smooth, undisturbed views in New England until next Monday or Tuesday which is when it will arrive. This clear sky will be followed by clouds, wind, rain, hail etc. for a good while.

    The 18mm is sweet! Very nice to aim with and you swear you could reach through the eyepiece and pick up a star! The moon looks great through it and you can see a lot of detail near the edges of the moon, IE, illuminated mountaintops near the edge of the light/dark zone. rebound peaks inside craters etc.


    I think I'll be over eyepiece mania once the holes in my accessory tray are full... Is that usually how it works? :-)
    Explore Scientific 102mm apo, Orion ST80A, Celestron C90, Canon 50mm F1.8 lens, Celestron 8X42 Nature DX
    CG-5 GT, Explore Scientific Twilight 1, & half a barn door mount (almost finished), Canon 7D, Orion Magnificent Mini AutoGuider, ZWO ASI120MC-S
    ES 82° 2" 6.7mm, 18mm, 30mm, Meade Series 4000 1.25" 25mm plossl, & Celestron 1.25" 32mm plossl eyepieces.

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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    Quote Originally Posted by MLaferriere View Post

    I think I'll be over eyepiece mania once the holes in my accessory tray are full... Is that usually how it works? :-)
    Well, if you are lucky. I make my own accessory boxes and trays, and when they get full, I make another.. and another.. if you get my drift
    Sky-Watcher PRO 120 ED/CGEM, ZWO guide camera in a mini 50 guide scope, Moonlight 2.5" focuser. Stellarvue 80mm
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    , lots of Stellarvue and AMD goodies Orion ED80T CF as a widefield imaging scope and also as a Grab-and-Go, sitting opposite an Orion 120 mm f/5 refractor with two-speed focuser on a Twilight II mount. Eyepieces: ES "82" 24mm, 18mm, 6.7mm; GSO ED 2-in 2x Barlow; Canon EOS T2i; a really old laptop, field flattener, filters, 20-foot cables, cords, battery-packs, adapters, and more junk every week
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    Default Re: ES 6.7mm, 2X Siebert Telecentric barlow or Meade 8-24 zoom lens?

    Quote Originally Posted by MLaferriere View Post
    The ES 82° eyepieces are parfocal so I should be able to swap them without having to aim on a bright star and re-focus with the bahtinov as well.
    Actually they are not quite parfocal, but very close. More info here:
    Telescope Reviews: ES 82 N2's

 

 

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