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Thread: Looking to increase my TFoV

  1. #1
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    Default Looking to increase my TFoV



    From reading a previous thread I see the Bresser 70's are on sale right now, and I've been looking to add an EP that would enhance my TFoV for DSO hunting. I'm comparing the Bresser 70deg 20mm ($35 - TFoV 1.87 with my scope) against the ES68 24mm ($129 - TFoV 2.18), and while I know the ES68 is a terrific EP, the price difference is almost $100. Right now I'm using a Meade 5000 14mm UWA as my DSO hunter with a TFoV of 1.53. Is it worth it to purchase the Bresser for the slight TFoV increase or wait?
    Thanks in advance as always....
    Scopes: Stellarvue SV70T w FF/FR @ 0.8x; ES 127 CF FCD100 w FF/FR @ 0.7x;
    Mounts: Orion Atlas EQ-G & Sirius EQ-G Filters: Astronomik EOS Ha 6nm, Oiii 12nm, CLS-CCD, Baader 1.25" SHO
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  2. #2
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    Default Re: Looking to increase my TFoV

    Hi,

    Go back to the post about the Bresser EPs. Skaven reviews them against the Meade 5000 series. He suggests that you will like these EPs. I just bought the 15mm 70°.

    Cheers,
    JT
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    Default Re: Looking to increase my TFoV

    The ES 24mm eyepiece is designed for faster scopes like yours where the Bresser is a very good eyepiece but better suited for slower scopes.
    The ES would be a better choice for your scope for clean to the edge views.
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  4. #4
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    Default Re: Looking to increase my TFoV

    I have used an ES 68 24 as the top end eyepiece above my 1.25 inch Meade UWA 14, 8.8, and 5.5 with my larger scopes.....(larger than five inches) It works pretty well there. Getting the Bresser 70 20mm would be a reasonable short term accommodation, but it will not perform the way the ES 68 will. You will be happier with the ES 68 24mm in the long run. My guess is that you will be back buying the ES 68 later, but not too soon, if you buy the Bresser 70 now.
    Bill Steen
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    Default Re: Looking to increase my TFoV

    Bresser 70 is an Erfle. I am a big fan of Erfles. After using them for a while I appreciate their benefits: comfortable ER, wide FOV and light weight. The disadvantages are soft focus (not an issue with your scope since it manifests only at high magnification), astigmatism and ghosting. They don't bother me too much and of lesser issue if you just use it for DSOs, but some people and some scopes are more sensitive than others.

    $35 is certainly a good price. There is little risk IMO. It may work for you just fine and then you saved $100. If you get ES68 later on (which is great EP) you may resell Bresser at CloudyNights or keep it as a spare.

    I went similar route. At first I got used Q70 26mm, enjoyed it for awhile, then upgraded to ES68 but kept Q70.
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    Default Re: Looking to increase my TFoV

    Ok, I sucked it up and just ordered the ES68 24mm from Adorama for $103... Thanks to all for your advice and words of wisdom!!! Clear skies.....
    bladekeeper and Bigzmey like this.
    Scopes: Stellarvue SV70T w FF/FR @ 0.8x; ES 127 CF FCD100 w FF/FR @ 0.7x;
    Mounts: Orion Atlas EQ-G & Sirius EQ-G Filters: Astronomik EOS Ha 6nm, Oiii 12nm, CLS-CCD, Baader 1.25" SHO
    EPs: ES82° 8.8&30mm; ES68° 24mm; Meade UWA 82° 5.5&14mm; Meade 52° 56mm; Binos: 15x70 Skywatcher
    Camera: ASI1600MM cool w ZWO EFW Mini, Canon T3i (modded) Canon T5, Processing & Imaging: Pixinsight/Backyard EOS

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    Default Re: Looking to increase my TFoV

    This is a great EP, you would not be disappointed.

 

 

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