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  1. #1
    Dublin sky watch's Avatar
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    Arrow Explore Scientific eye pieces.



    Last month I got a chance to use ES 100 degree series eye pieces which include 20mm,14mm and 9mm. I used then in the Celestron 8" edgeHD to view firstly Jupiter. For comparison I also had a 25mm plossel ep. These 3 eps cost me around $1200 to get them to Ireland so I was hoping for a result. I really was not disappointed as the view of Jupiter at 20mm was strikingly sharp. The bands stood out so clearly and so defined. I quickly switched to the plossel and was immediately met with a very soft image no matter how much re focusing I did. The bands did not stand out any way near as much. I never used that ep for the remainder of the session...

    The views really were so crisp with the ES. Seeing was very good and little or no turbulence to be had. I popped in the 14mm and was just brimming with excitement at the sharp views across the whole view..right out to the very edge. On the next night there was a transit of one of the moons across Jupiter which stood out almost like 3D...When I barlowed the 9mm (Push every thing I say) I was just laughing out loud like an idiot with the detail..

    Around 04.00 in the morning the crescent moon began to rise and I was gob smacked with the total crispness of the view. Hands down these babies were worth it. I have tended not to set up out the back at home to view the Moon...but that has changed now... Every thing is just so sharp. Viewing along the terminator was a treat..

    As for ease of use. The 20mm and the 14mm are surprisingly heavy and I had to rebalance my gem when I had them inserted..no biggy. The 2" diameter eps are easy on the eyes as well and I had no strain are 15 mins of constant viewing. My neck had some thing to say about that though..

    While expensive as eye pieces go they very much enhance the viewing experience and while I was a little sceptical before using them as to how much of improvement I would see..I can confirm for me ...they were well worth the expense.
    Thanks..
    Declan.
    Celestron 8"Edge HD SCT.
    Skywatcher ED80mm refractor.
    Explore Scientific - 127mm f/7.5 Air-Spaced Triplet ED.
    Lunt - 60mm H-alpha Solar-Telescope with Double Stacked 50 Etalon system, B600 blocking filter and 2 " Crayford Focuser
    orion star shoot solitaire autoguider.
    Canon 5D Mark II dslr.
    Two men sat behind prison bars,One saw mud, the other saw stars. It's not where you are, it's what you see!!!

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    AbbN (10-29-2011),admin (10-29-2011),andyp180 (10-29-2011),Carolgentle (10-29-2011),DaltonSkyGazer (10-29-2011),Danzup77 (11-17-2011),DB9 (11-21-2011),glafnazur139 (11-03-2011),j.gardavsky (10-28-2011),JamesandmyOpinion (11-30-2011),JuanM (11-01-2011),KT4HX (10-29-2011),mike_crow (01-05-2012),mzu (10-29-2011),Pingu (11-11-2011),samgray1 (11-03-2011),schwimmair (10-29-2011),spectre180 (10-28-2011),starman345 (11-03-2011),tmohr (10-28-2011),Voyager3 (01-08-2012),xphile (11-03-2011)

  3. #2
    andyp180's Avatar
    andyp180 is offline Super Moderator
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    Default

    thanks for the report declan.
    sounds like money well spent for you buddy.
    enjoy the ep's,they sound like a great investment.
    clear skies,

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    andy

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  5. #3
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    I think used with the edge hd may have added to my enjoyment.
    But you know how it goes...you actually buy some thing a bit more expensive and dont seem to notice the difference for the extra money?
    Well certainly not the case here. Very impressed.
    Cant wait to try them with the 5" refractor Andy!!!
    Declan.
    Celestron 8"Edge HD SCT.
    Skywatcher ED80mm refractor.
    Explore Scientific - 127mm f/7.5 Air-Spaced Triplet ED.
    Lunt - 60mm H-alpha Solar-Telescope with Double Stacked 50 Etalon system, B600 blocking filter and 2 " Crayford Focuser
    orion star shoot solitaire autoguider.
    Canon 5D Mark II dslr.
    Two men sat behind prison bars,One saw mud, the other saw stars. It's not where you are, it's what you see!!!

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  7. #4
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    Smile

    Great report Declan, those EPs sound amazing.
    So glad to hear you're enjoying the views along the terminator too

    Carol

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    Heritage 130P

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    Optics 8" Dob
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    Hi Carol.
    Sorry i never got back to you...just back up and running from yesterday...
    Was going to respond today.
    Hope all is well with you..
    Declan.
    Celestron 8"Edge HD SCT.
    Skywatcher ED80mm refractor.
    Explore Scientific - 127mm f/7.5 Air-Spaced Triplet ED.
    Lunt - 60mm H-alpha Solar-Telescope with Double Stacked 50 Etalon system, B600 blocking filter and 2 " Crayford Focuser
    orion star shoot solitaire autoguider.
    Canon 5D Mark II dslr.
    Two men sat behind prison bars,One saw mud, the other saw stars. It's not where you are, it's what you see!!!

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  11. #6
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    Great review. Thanks !! I recently tried my new 11mm ES 82° EP and just love it. As you say, the image is very sharp and the EP works great from edge to edge. I'm looking into more ES eyepieces but will probably stay with the 82°. Personally, for me, I think that 82° is the limit for comfortable viewing.
    I barlowed the EP with my GSO barlow and it works great. I'm thinking of replacing all my EP's with ES one at a time. The Baader Hyperions are great EP's but I like the 82° and the edge correction of ES. Those EP's just work great with my 12" Dob.
    GSO 12" f/5 Dob
    Explore Scientific 4.7mm 82°, Explore Scientific 11mm 82°, Explore Scientific 30mm 82°, GSO 30mm 2" 70°, GSO 2" x2
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  13. #7
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    Smile

    Quote Originally Posted by Dublin sky watch View Post
    Hi Carol.
    Sorry i never got back to you...just back up and running from yesterday...
    Was going to respond today.
    Hope all is well with you..
    Hey Declan, no probs.

    Will catch up with you later.

    Good to have you back.

    Carol

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    Heritage 130P

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    Optics 8" Dob
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    Panasonic Lumix FZ28, Canon 550D

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  15. #8
    aod's Avatar
    aod
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    I want to buy ES eyepieces. Thanks for the review, now decision is so much easier!
    Synta 10" Dobson

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  17. #9
    Widespread's Avatar
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    It's great that you finally got to use the EPs after months of anticipation.
    Even better, you're pleased as punch with your purchases!

    Due to various circumstances, it's been more than a month since I've had EP time, but I'm gonna get out tonight for sure. The seeing is supposed to be good, and I have yet to get a gander at Jupiter.

    Thanks for a great report.
    Celestron 8SE

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    Great to see someone as happy as I with the ES's.I have always been happy with them,especially at medium and high power,everything is tack sharp at them ranges.When I use low power I run into some focusing issues(perhaps coma or something),but as long as the mirror is cooled all the way I can tweak it to make an attractive radiating star effect(just with the stars).I am a believer in as wide a field of view I can get with a manual dob so there is less pushing.I hav a 100 deg. 14 and 9 and they get much use.
    clear skies!

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    ​: Sky-Watcher 12" collapsible
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    w/Telrad
    Ep's: Explore Scientific 82*30,24,18 and 100*14,9 and Televue 4X Powermate

 

 
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