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  1. #1
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    Default Noob to eyepieces



    Hey everybody

    Im a complete noob when it comes to eye pieces. Is there anybody that can suggest what sort of Eyepiece (size) I should use to view planets (mostly saturn) because with my current eyepiece it just appears very tiny with a ring around it (*very* tiny)

    Also, will a barlow make a huge difference?

    Thanks everybody

  2. #2
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    Default

    Hi pcboy,

    What kind of scope do you currently own? This can possibly help us to answer your question better.

    Chris
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  3. #3
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    Quote Originally Posted by laney50w View Post
    Hi pcboy,

    What kind of scope do you currently own? This can possibly help us to answer your question better.

    Chris
    Oh sorry XD I thought it was on my description. Its a Skywatcher 120mm Refractor

  4. #4
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    Default

    pcBoy:

    well you have yourself a nice telescope...IF I am correct it is an f/8 1000 mm telescope and as such will not have too much false color ... I would expect that you could easily push that scope up to 200x maybe 225 when looking at Saturn which means it should be able to handle a 5 mm eyepiece ON NIGHTS WHEN THE SEEING IS GOOD or BETTER THEN AVERAGE ..same magnification can be had with a 10 mm eyepiece and a 10 mm eyepiece...

    HOWEVER... Saturn is a long way away from Earth and even at 200x it will not appear very big but (again on nights with good seeing) you should be able to see the separation between the individual rings with your scope...

    UNFORTUNATELY I own about a half dozen telescopes ( one of which is a 100 mm f/6 refactor and a one is a 127 mm f/9 refactor..one slightly smaller and one slightly larger then yours) BUT under my local skies I can rarely push either much above 120x because of seeing conditions and I like to use between 150 and 180x for planets like Jupiter and Saturn which means I'm outy of luck with both of them on a normal night here... That doe snot mean the scopes do not get used...far from it both do a great job on Open clusters which I happen to enjoy looking at...plus both work well on the moon especially if I use a Minus Violet filter to cut down on the false color ...the f/6 os much worst then the f/9 so I would expect your f/8 to be somewhere in between...

    CLEAR TRANSPARENT SKIES to YOU...

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  6. #5
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    Quote Originally Posted by Bob327 View Post
    pcBoy:

    well you have yourself a nice telescope...IF I am correct it is an f/8 1000 mm telescope and as such will not have too much false color ... I would expect that you could easily push that scope up to 200x maybe 225 when looking at Saturn which means it should be able to handle a 5 mm eyepiece ON NIGHTS WHEN THE SEEING IS GOOD or BETTER THEN AVERAGE ..same magnification can be had with a 10 mm eyepiece and a 10 mm eyepiece...

    HOWEVER... Saturn is a long way away from Earth and even at 200x it will not appear very big but (again on nights with good seeing) you should be able to see the separation between the individual rings with your scope...

    UNFORTUNATELY I own about a half dozen telescopes ( one of which is a 100 mm f/6 refactor and a one is a 127 mm f/9 refactor..one slightly smaller and one slightly larger then yours) BUT under my local skies I can rarely push either much above 120x because of seeing conditions and I like to use between 150 and 180x for planets like Jupiter and Saturn which means I'm outy of luck with both of them on a normal night here... That doe snot mean the scopes do not get used...far from it both do a great job on Open clusters which I happen to enjoy looking at...plus both work well on the moon especially if I use a Minus Violet filter to cut down on the false color ...the f/6 os much worst then the f/9 so I would expect your f/8 to be somewhere in between...

    CLEAR TRANSPARENT SKIES to YOU...

    Bob G.
    Thank you so much

    You just broadened my understanding of eyepiece. Thank you

    So the smaller the eyepiece, the bigger the object but a bigger eyepiece will not zoom in as much which is good for clusters. Am I correct?
    Skywatcher 102mm Refractor, 10mm Super Plossl Eyepiece, 2X Barlow, Orion Starshoot Solar System Imager IV

  7. #6
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    Default

    pcboy

    I concur with all of the above. Search the web (and this forum), there is plenty of advice. This link is to the Televue web site and it is a little bias towards TV eyepieces, but the advice and information is good.

    Tele Vue Optics: Advice

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  9. #7
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    Default

    That was actually very useful, Sarge. I'm also trying to work out the best eyepieces to get, because finances play a massive part in any decision I can possibly make. The next step is to find out which marque represents the best bang for my buck...
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