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Thread: Celestron Omni

  1. #11
    Sixfalls's Avatar
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    Default Re: Celestron Omni



    I've also been a bit unlucky with the Orion Sirius. I have a 25mm that will soon end up on eBay cheap. I'll replace it most likely with a Meade 4000 Plossl 26mm, or a GSO 25mm Plossl.
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    Default Re: Celestron Omni

    Quote Originally Posted by Sixfalls View Post
    I've also been a bit unlucky with the Orion Sirius. I have a 25mm that will soon end up on eBay cheap. I'll replace it most likely with a Meade 4000 Plossl 26mm, or a GSO 25mm Plossl.
    I have all three of those lol. I have a bino pair of the 26mm Meade. I had to return two Meade 26mm's because of visible debris. I think the Orion 25mm has a debris spot I can't clean. The Orion was included with my Orion Mak.
    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

  3. #13
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    Default Re: Celestron Omni

    Quote Originally Posted by Bigzmey View Post
    Even if they come from the same factory, the fit and finishes could be different. A few of Orions EPs went through my hands, none stayed. The most awful EP and focusers I had came from Orion. I may just been unlucky, but if you get burned a few times by the same brand, would you stick to it or recommend to others?
    I've been burned by every brand, including TeleVue, Baader and Astro Hutech lol. It's just the way it goes I suppose.
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    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

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    Default Re: Celestron Omni

    Quote Originally Posted by Shorty Barlow View Post
    I have all three of those lol. I have a bino pair of the 26mm Meade. I had to return two Meade 26mm's because of visible debris. I think the Orion 25mm has a debris spot I can't clean. The Orion was included with my Orion Mak.
    I only had a couple of issues with debris in BST Flat Field and Astrotech Dual ED. Orion's Plossls I had seemed to be darker on DSOs than Celestrons I had at that time.

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    Default Re: Celestron Omni

    Quote Originally Posted by Shorty Barlow View Post
    I've been burned by every brand, including TeleVue, Baader and Astro Hutech lol. It's just the way it goes I suppose.
    With Orion it happened too often for my liking. I had to return ST120, the second one was pretty good though. Orion's crayford focuser I had to send back three times. All 3 came defective.

  6. #16
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    Default Re: Celestron Omni

    Quote Originally Posted by Bigzmey View Post
    I only had a couple of issues with debris in BST Flat Field and Astrotech Dual ED. Orion's Plossls I had seemed to be darker on DSOs than Celestrons I had at that time.
    I think that this is probably an issue with the coatings. I would estimate that about one in three eyepieces I have ever bought have had to be returned because of visible debris.



    These two 17mm Plossls above (now with William Optics drawtubes) were purchased years apart. The one on the right came out of a Celestron kit, the other is a 'Sky-Watcher' although it carries no brand name. They are identical and I use them in my WO bino.



    The Orion 7.5mm Plossl on the left above has its original aluminium drawtube. The 7.5mm 'Sky-Watcher' next to it has been retro fitted with a smooth chromed brass drawtube. Apart from the drawtubes, silk screen writing and dust caps, these are identical eyepieces.
    Last edited by Shorty Barlow; 11-08-2018 at 12:18 PM.
    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

  7. #17
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    Default Re: Celestron Omni

    Quote Originally Posted by Bigzmey View Post
    With Orion it happened too often for my liking. I had to return ST120, the second one was pretty good though. Orion's crayford focuser I had to send back three times. All 3 came defective.
    Yeah, I've had to send back some items three times. It can be quite frustrating. I'm not sure who make the Crayford focusers for Synta products. Some look 'in-house', but I believe some are possibly Long Perng. Synta made focusers tend to have an integral finder shoe. Although there are exceptions.



    The shoe on my ED72 is not integral and doesn't even look like a traditional Synta finder shoe to me.
    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

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    Default Re: Celestron Omni

    These are the brands (that I can remember) that I've had to return eyepieces because of some problem:

    Astro Hutech
    Baader
    Bresser
    BST
    Celestron
    GSO
    Kokusai
    Meade
    Revelation (GSO)
    Sky-Watcher
    TeleVue
    TS Optics (Barsta/BST)
    William Optics

    Oddly, I've never had to return an Orion branded eyepiece. The 25mm Sirius Plossl included with my 90mm Orion Mak has a debris spot that I have not yet been able to remove. The included 10mm Plossl was OK. I have a 9mm Orion Expanse that had visible dust when you looked through it although I realised I could brush this out after removing the Smyth lens.



    All three of my Omni Plossls have been fine.
    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

  9. #19
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    Default Re: Celestron Omni

    Quote Originally Posted by Shorty Barlow View Post
    These are the brands (that I can remember) that I've had to return eyepieces because of some problem:

    Astro Hutech
    Baader
    Bresser
    BST
    Celestron
    GSO
    Kokusai
    Meade
    Revelation (GSO)
    Sky-Watcher
    TeleVue
    TS Optics (Barsta/BST)
    William Optics

    Oddly, I've never had to return an Orion branded eyepiece. The 25mm Sirius Plossl included with my 90mm Orion Mak has a debris spot that I have not yet been able to remove. The included 10mm Plossl was OK. I have a 9mm Orion Expanse that had visible dust when you looked through it although I realised I could brush this out after removing the Smyth lens.



    All three of my Omni Plossls have been fine.
    You either have some bad luck, or have bought an incredible amount of eyepieces to have needed to return that many


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    Shorty Barlow's Avatar
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    Default Re: Celestron Omni

    Quote Originally Posted by Don Alvarez View Post
    You either have some bad luck, or have bought an incredible amount of eyepieces to have needed to return that many

    Probably a bit of both lol.
    TS Optics: 150mm, f/6 Newtonian (GSO SVD series). Altair: Starwave 102ED-R. Sky-Watcher: SkyMax 102mm, SkyMax 127mm, Evostar 72ED DS Pro, Evostar 80ED DS Pro, ST80 (TS Focuser), ST102 (TS Focuser), EQ5 Deluxe, AZ5 Deluxe. Vixen: Porta II, SXG Hal-130. Orion: 90mm StarMax , ST80 (TS Focuser). Celestron: NexStar Evolution 9.25". William Optics: E-BINO-P Binoviewer. A shed load of eyepieces including: Antares, Astro Hutech, Baader, Bresser, BST, Bushnell, Celestron, Explore Scientific, GSO, Kokusai, Meade, Orion, Sky-Watcher, Solomark, SvBony, TeleVue, Vixen & one or two I'm not sure of.

 

 
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