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Thread: Agena SWA or Starguider Dual

  1. #11
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    Default Re: Agena SWA or Starguider Dual



    Quote Originally Posted by KT4HX View Post
    I have to admit, I've seen few comments about that particular focal length of the Starguider, and notice Astro-Tech doesn't even market the Paradigm at 3.2mm, though BST does with their Explorer Dual ED series. Perhaps there is a good reason why AT chose not to. Most eyepiece lines have a weak spot. With the ES 82 its considered the 14mm for its field curvature. Typically for the Paradigm its the 25mm for some edge of field breakdown. I found the Hyperion 5mm had the ring of fire effect, etc. It sounds like there were some issues with internal blackening in your 3.2mm That has not been the case with other focal lengths of Paradigm that I've used, nor have I seen others comment about that happening in either the Paradigms or Starguiders. But in Luis' f/10, if holding to a tight budget, the Agena SWA 15mm should work great.
    Well, looking and looking on TaoBao (the chinese Ebay ) I had found some dealers that offer Explore Scientific at almost the same price than in US which is more reasonable to me. I have still to ask my chinese friend to help me contact one of those shops because if I am going to do that invest I need to be sure everything is right (or most of it).

    Now, that you've mention the 14mmm that is what I've been exactly thinking to get in focal lenght. But you've mention that it is probably the weak spot for ES eyepieces. Do you think it will be too bad on my forgiving F10 scope? Meade has the same focal lenght on their 5000 UWA series. Do you think they will have the same problem too?
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  2. #12
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    Default Re: Agena SWA or Starguider Dual

    Quote Originally Posted by KT4HX View Post
    Just curious, which f/l of the Dual ED were you using, and exactly what was wrong with the performance? The reason I ask is your comments certainly don't track with any others I've read from those using the Paradigms/Starguider Dual EDs in an SCT.

    I compared the Paradigm 12mm to my ES 82 11mm in my 10 inch f/5 and aside from the obvious difference in AFOV, the Paradigm compared quite favorably. Of course the ES beat it in all categories as one would and should expect, but I was very pleasantly surprised with the results using the Paradigm.
    Could be as well. Finding right EP for your eye/scope combo is tricky. This is why I thought if Luis already tried and like X-Cel why not to stay with same proven EP line?
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  3. #13
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    Default Re: Agena SWA or Starguider Dual

    Quote Originally Posted by musiclucho View Post
    Well, looking and looking on TaoBao (the chinese Ebay ) I had found some dealers that offer Explore Scientific at almost the same price than in US which is more reasonable to me. I have still to ask my chinese friend to help me contact one of those shops because if I am going to do that invest I need to be sure everything is right (or most of it).

    Now, that you've mention the 14mmm that is what I've been exactly thinking to get in focal lenght. But you've mention that it is probably the weak spot for ES eyepieces. Do you think it will be too bad on my forgiving F10 scope? Meade has the same focal lenght on their 5000 UWA series. Do you think they will have the same problem too?
    Going with ES would be a wise choice. I have 14mm and it performs great in my SCT. Weak is relative to other ES EPs, but it is still better than many others

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  5. #14
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    Default Re: Agena SWA or Starguider Dual

    Meade 14mm 5000 UWA considered the best in Meade line . Go with least expensive, both ES and Meade UWA are strong performers.
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  7. #15
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    Default Re: Agena SWA or Starguider Dual

    Quote Originally Posted by musiclucho View Post
    Well, looking and looking on TaoBao (the chinese Ebay ) I had found some dealers that offer Explore Scientific at almost the same price than in US which is more reasonable to me. I have still to ask my chinese friend to help me contact one of those shops because if I am going to do that invest I need to be sure everything is right (or most of it).

    Now, that you've mention the 14mmm that is what I've been exactly thinking to get in focal lenght. But you've mention that it is probably the weak spot for ES eyepieces. Do you think it will be too bad on my forgiving F10 scope? Meade has the same focal lenght on their 5000 UWA series. Do you think they will have the same problem too?

    Not really. I didn't mean to imply its a bad eyepiece, only that it is considered the weakest one in the line. That said, I never even noticed the field curvature until I went looking for. Its not as bad as some have tried to let on in my view. How I look at it, the Pentax XW 14mm is also noted for its field curvature, but its still a popular eyepiece. So no, I wouldn't rule out the ES 82 14mm at all. I have, I use it and I like it in my faster scopes.
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  9. #16
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    Default Re: Agena SWA or Starguider Dual

    Starguider's must be popular, they seem to be out of stock.
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    Default Re: Agena SWA or Starguider Dual

    Quote Originally Posted by frazmataz View Post
    Starguider's must be popular, they seem to be out of stock.
    I read many good reviews on them and was disappointed. However, it takes a lot to make a good 3mm EP, so as Alan suggested it may be a lemon in the otherwise fine EP line.

    Still ES 82 EP would be better choice
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  11. #18
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    Default Re: Agena SWA or Starguider Dual

    Unfortunately, Agena has not gotten in new stock of the Starguiders. I was told by them they were expected by the end of April. Obviously that hasn't happened. Astronomics, which carries the Astro Tech version - Paradigm, show that they have the 5mm, 12mm and 15mm are in stock, while the 8mm, 18mm and 25mm show as wait listed. As BigZ said, the ES 82 or even ES68 are better eyepieces all around. But they do cost more. For the $60 price point, the Starguiders and Paradigms are excellent - though obviously there seems to be an issue with the 3.2mm. Sometimes it is simpler to just use a barlow to push the magnification to that degree in the times when seeing permits us to do so.

    https://astronomics.com/astro-tech-p...ieces_c52.aspx
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    Default Re: Agena SWA or Starguider Dual

    I wonder if they are out of production and vendors just selling off there stocks.

    Same seems happened to Zhumell Z/ LER EP line.

  13. #20
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    Default Re: Agena SWA or Starguider Dual

    These are all made by Barsta, and their own label BST Explorer Dual EDs are regularly on Ebay from dealers in the UK and Australia. I have sent a query to both Agena and Astronomics about the status of their orders. Given how well these have sold, I would be surprised if BST would stop making them, or if Agena or Astronomics would drop their contract for them under their respective labels. Of course things do change, but I hope that does not turn out to be the case.
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