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Thread: Orion Expanse vs Orion Planetary Edge On.

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    Default Orion Expanse vs Orion Planetary Edge On.



    I am looking to replace my 9.7mm plossl which has terrible eye relief and would like something more comfortable. I plan on using it to mainly look at the moon and planets. I have two telescopes a 80mm x 400mm FL Refractor and a 6 Inch x 1200mm reflector. I already bought the 9mm expanse but now I was wondering if it would have been better if I got the 9mm Planetary Edge-on eyepiece instead. It's about 30$ more(expanse was 62$ and the Edge-on is $90). Would it be worth my time and money to return the Expanse and get the Edge-on instead?

    Which would have been better to replace my 9.7mm plossl? Any advice?

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    Default Re: Orion Expanse vs Orion Planetary Edge On.

    I am not a big fan of Orion's EPs. This is what I would want at that length in this price range.

    https://agenaastro.com/explore-scien...piece-9mm.html
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    Default Re: Orion Expanse vs Orion Planetary Edge On.

    Edge-on is definitely better EP than Expanse. However, there are better options in the same price range as Ozman indicated.

    I would suggest Celestron X-Cel LX, better and cheaper than Edge-on

    https://agenaastro.com/celestron-9mm...ece-93423.html

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    Default Re: Orion Expanse vs Orion Planetary Edge On.

    Those look like good recommendations. I'll consider getting one of those instead.

    I usually stick to plossls because they are good quality eyepieces while still very affordable. But I need a high power eyepiece for the moon planets and my 9.7mm is way too uncomfortable to use(even my 15mm barely has enough eye relief). I am open to other recommendations if anyone else has any.
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    Default Re: Orion Expanse vs Orion Planetary Edge On.

    Quote Originally Posted by baward85 View Post
    Those look like good recommendations. I'll consider getting one of those instead.

    I usually stick to plossls because they are good quality eyepieces while still very affordable. But I need a high power eyepiece for the moon planets and my 9.7mm is way too uncomfortable to use(even my 15mm barely has enough eye relief). I am open to other recommendations if anyone else has any.
    With Plossls the eye relief is about half the focal length. You can always use a good quality barlow in combination with a Plossl to get higher magnification and greater comfort out of the Plossls that you have.

    I too am not a fan of the Expanse series of eyepieces.
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    Default Re: Orion Expanse vs Orion Planetary Edge On.

    Quote Originally Posted by baward85 View Post
    Those look like good recommendations. I'll consider getting one of those instead.

    I usually stick to plossls because they are good quality eyepieces while still very affordable. But I need a high power eyepiece for the moon planets and my 9.7mm is way too uncomfortable to use(even my 15mm barely has enough eye relief). I am open to other recommendations if anyone else has any.
    Can't go wrong with Plossls, but they do get uncomfortable in shorter focal range. This is why my first upgrade from Plossls was 5mm X-Cel LX EP.

    Alternative route you may consider is to get a good quality barlow. I would recommend Baader Q Barlow

    https://agenaastro.com/baader-q-barlow-bqb-2956185.html

    With 2.25x barlow 20mm Plossl becomes 8.8 mm and 32mm Plossl becomes 14.2mm, but you still have a nice eye relief.

    Ops, nFA already covered that.

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    Default Re: Orion Expanse vs Orion Planetary Edge On.

    My Expanse 6mm and 9mm are so-so IMO, but my 15mm Expanse is probably my most used EP. That one I love. Nice ER too.

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