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Thread: Newbie-need help choosing eye pieces and filters

  1. #11
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    Default Re: Newbie-need help choosing eye pieces and filters



    Jocelynanissa, I have an Orion zoom eyepiece that is similar to what you mention. I have a 8mm - 24mm Orion zoom and I use it almost exclusively. I find it great for star parties when people want to zoom out on the close view of the moon I am showing them. It was one of the best buys I've made for my scope. Clear Skies!!
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  3. #12
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    Default Re: Newbie-need help choosing eye pieces and filters

    Hi ZXCVB!
    Thanks for the info. Thanks everyone. this is great! So far with a bit of research I have understood everything everyone has pointed out and suggested. But you, ZXCVB wrote something I'm stuck on.

    "With a 32mm and a 2xBarlow you would have 39x/50x/78x/100x/125x and {250x Just for Giggles}at your disposal--Overall a Tool for the Task--All for the price of that zoom"

    I'm trying to understand the math. A 2x Barlow, I have learned, doesn't magnify the joining eyepiece, it's actually changing the focal length of the telescope (It's called foal length, right? I'm trying!) So my 1250 FL becomes 2500 and adding an eyepiece of 32mm (2500/32). With that I understand the 39x and 78x. How do you get 50x, 100x, and a 125x (not forgetting the giggling 250x)? I'm missing something, here.

    OK, my daughter just sang "I know something you don't know". Help me out here.

  4. #13
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    Default Re: Newbie-need help choosing eye pieces and filters

    Thanks Ronster 666!

    Have you ever used a Barlow with it? Your opinions of that?

    Thanks!

  5. #14
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    Default Re: Newbie-need help choosing eye pieces and filters

    Quote Originally Posted by Jocelynanissa View Post
    Hi ZXCVB!
    Thanks for the info. Thanks everyone. this is great! So far with a bit of research I have understood everything everyone has pointed out and suggested. But you, ZXCVB wrote something I'm stuck on.

    "With a 32mm and a 2xBarlow you would have 39x/50x/78x/100x/125x and {250x Just for Giggles}at your disposal--Overall a Tool for the Task--All for the price of that zoom"

    I'm trying to understand the math. A 2x Barlow, I have learned, doesn't magnify the joining eyepiece, it's actually changing the focal length of the telescope (It's called foal length, right? I'm trying!) So my 1250 FL becomes 2500 and adding an eyepiece of 32mm (2500/32). With that I understand the 39x and 78x. How do you get 50x, 100x, and a 125x (not forgetting the giggling 250x)? I'm missing something, here.

    OK, my daughter just sang "I know something you don't know". Help me out here.
    You are doing some reading... That is very good !! I use this once in a while to save on pencil and paper--umm, and I don't "do" math... It's helpful for me... N.A.A. Telescope Math Calculator
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  7. #15
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    Default Re: Newbie-need help choosing eye pieces and filters

    Yes, I have a 2X-3X slide Barlow that I use with it.

  8. #16
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    Default Re: Newbie-need help choosing eye pieces and filters

    Well folks after doing some reading and research I have decided on the Celestron 94303 Accessory Kit and bought it from CanadianTelescopes.com. I was going to buy a Variable Polarising Filter, a zooming eye piece from, a solar filter, and 2x Barlow (ironically all from Orion). Decided on the above kit instead. Perhaps a Variable Polarising Filter and a Solar Filter could be budgeted in the future. I think this kit will keep us busy and is a good first step at additional eye pieces. The box it comes in (A reviewer said it's hard plastic made to look aluminum but that doesn't bother me) is nice as I can add in the 2 eye pieces I already have with my telescope, 10mm and 20mm.

    IMO kits are always a good first step to a beginner in any field but are not always top notch quality. I really liked the idea of a Polarising Filter but have already gone over my budget. Didn't want to get a kit where it already had a 10mm and a 20mm. I thought the above kit will be good for now. Your thoughts and advice?

    This post will be it for a little while. Will have fun with our new scope and will post our impressions from the new kit and objects we see. Thanks everybody for all the feedback and help!!! This is actually the first time I have ever used a forum. Thanks!

    Will post soon enough,
    Jocelyn & Anissa
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  10. #17
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    Default Re: Newbie-need help choosing eye pieces and filters

    Quote Originally Posted by ronster666 View Post
    Yes, I have a 2X-3X slide Barlow that I use with it.
    I saw a 2x-3x Barlow slide. Read a few reviews it only worked clearly slightly above 2x. And you're using a zooming eyepiece along with a zooming Barlow and works fine.

    I'm seeing a pattern in some reviews and posts. Will certain eye pieces work great with a type of scope and not that much with another? A zoom will work great on a refractor but not a reflector just for example? Is that true? With the zooming eyepiece one with a reflector said it works great and another with a refractor said it was fuzzy. Perhaps the focal lengths were completely different. Then there's the differentiation between reviews of the average observer and the professional who will only purchase top highest quality products.

    Thanks Ronster666!

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    Default Re: Newbie-need help choosing eye pieces and filters

    Welcome to our party in the sky. You've been given great answers so, I won't bore you" The sky is Limitless"

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    Default Re: Newbie-need help choosing eye pieces and filters

    Hey there J-n-A---Sounds like your daughter is as Sharp as a Tack--With a 2x Barlow I just Times whatever Mag a eyepiece gives x 2--Your scope has a 1250mm Focal Length--1250mm FL divided by 25mm EP=50x times 2=100x---It's Confusingly Easy..All those other # were 32/25/10mmEyepieces-by them selves and Barlowed

    I bought the Very same EP and Filter kit with my 130slt--You are going to Love it--The 32/17 and 13mm EP's are going to work great in your scope and the Moon filter while not an adjustable polarizing filter still works great and the #12 yellow and #21 orange are worth trying out on Jupiter and Saturn

    The 8mm and 6mm are going to be too much for the scope you have now and the other filters in the kit have too low VLT's{Visible Light Transmission}to do anything in your size scope except make the Moon funky colors{Anissa well get a kick out of that}and you can-Stack- the filters for even more fun with the full Moon--Anyways with the 8 and 6 stored for future use you now have room for the 25 and 10--GREAT--You 2 have FUN-Talk to ya later------------ZX
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    Default Re: Newbie-need help choosing eye pieces and filters

    Hi Jocelyn and Anissa,

    Congrats on the kit - I believe that it will serve you well.

    The 32mm EP is great for looking at open clusters. I have the Orion equivalent and it is my most used EP. The 2X Barlow is decent quality and looks like it has a removable lens, which allows you to screw the Barlow lens assembly into another EP as you would a filter to give 1.5X instead of 2X! Now you have even more magnification possibilities to enjoy!
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