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  1. #1
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    Default TeleVue Big 2X Barlow vs Powermate 2X



    Is there a noticeable difference between the barlow and powermate? Is it worth the extra ~$50?

    Any one out there that owns either of these barlow type lenses that can comment?

    Thanks.
    Zhumell Z10
    Eyepieces: Zhumell 9mm Plossl, Zhumell Wide Angle 30mm
    Nikon Action 7x50 Binoculars
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  2. #2
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    Default

    I own a 4X Powermate. The reason to buy a Powermate instead of a Barlow is because with a Barlow you can end up with eye relief that is too long when using it with some longer focal length eyepieces.

    I bought mine because I wanted to have the long eye relief associated with longer focal length eyepieces, but at higher magnifications. When my research told me that I might end up with too much eye relief, I decided to play it safe and buy the Powermate.

    With my 30mm and 14mm EPs (see my signature) and my 4x Powermate I get magnifications of 50, 107, 200, and 428. My next planned EP purchase is the Explore Scientific 100 degree 20mm EP, which will add magnifications of 75 and 300 for my present (1500mm FL) telescope, all with nice comfortable eye reliefs and wide FOV.
    Name: Sam
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    12” Collapsible Dob w/Telrad, Explore Scientific 30mm 82*, and 20mm, 14mm, & 9mm 100* EPs, Tele Vue 4X Powermate & Paracorr T2, 2" Lumicon UHC and ND13 (
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    ) Filters, 2" Astronomik OIII filter, dew heater system, and Nikon Action 7x50 EX Extreme ATB 6.4* binoculars & Celestron 15x70 binoculars.

    I'm enjoying learning the sky by star hopping; just charts, my binoculars, and my Dob!

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  4. #3
    brian78's Avatar
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    Default

    How's the weight with the EPs and the 4X Powermate? I think the Powermate itself is 1.2 lbs.
    Zhumell Z10
    Eyepieces: Zhumell 9mm Plossl, Zhumell Wide Angle 30mm
    Nikon Action 7x50 Binoculars
    Celestron Skymaster 15x70 Binoculars
    Polaroid 72" Tripod


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  5. #4
    samgray1's Avatar
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    Default

    That's the problem. The longer focal length wide FOV EPs are heavy, so when you put the two together it gets quite heavy. I made up a simple counterweight for my telescope using two water bottles filled with sand that I strap on to the bottom of the OTA.
    Name: Sam
    Equipment:
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    12” Collapsible Dob w/Telrad, Explore Scientific 30mm 82*, and 20mm, 14mm, & 9mm 100* EPs, Tele Vue 4X Powermate & Paracorr T2, 2" Lumicon UHC and ND13 (
    To view links or images in signatures your post count must be 5 or greater. You currently have 0 signatures.
    ) Filters, 2" Astronomik OIII filter, dew heater system, and Nikon Action 7x50 EX Extreme ATB 6.4* binoculars & Celestron 15x70 binoculars.

    I'm enjoying learning the sky by star hopping; just charts, my binoculars, and my Dob!

 

 

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