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  1. #1
    Giray Gencaslan's Avatar
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    Question Celestron 15x70 or 20x80



    Hello,

    I have Minolta Clasic 10x50 binocular. I want to step up my equipment for binocular.
    I read so many good thing about Celestron SkyMaster 15x70 about perfect price/performans, light collection. Its FOV 4,4 degree.
    I'm wondering Celestron SkyMaster 20x80, it's users love their binoculars and its FOV 3,7 degree.

    As i know largest galaxy is M31 and it's apperant diameter is 3,5 degree. I have Vanguard MK4 tripod. Which one is best for light collection and DSO?

    Thank you & Have a nice day!
    Last edited by ghswen; 06-26-2013 at 04:19 PM.
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  2. #2
    Giray Gencaslan's Avatar
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    Fix: Sorry for the title. It would be Celestron 15x70 or 20x80. I couldnt edit title.
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    Hello Giray,

    the 10x50 Minolta are budget binoculars, not bad at all for the wide field viewing. In your place, I'd consider the 20x80 binoculars.
    I have never had the 20x80 binoculars from Celestron in my hands. A good way would be to compare the Celestron's specifications with the astronomy 20x80 binoculars at Garrett's.
    The Celestrons may be those (or similar to) Gemini LW
    Garrett® Gemini 20x80 LW Binocular
    with the 85% transmissivity.

    A better choice would be the Gemini 20x80 WP-CF Mk II binoculars https://www.garrettoptical.com/Garre...g2080wp-cf.htm
    with the superior multi-coatings for >90% total light transmission. The 5% more transmission makes quite a difference on the nebulae and galaxies.

    The best choice at the magnifications around 20x are the Teleskop-Express: TS 22 x 85 MARINE Big Binocular - Outdoor - Wide Angle - Nitrogen
    I have their 'little brother', the 15x85, and I am using them preferentially for the difficult emission nebulae. These 85mm binoculars are really the profi line, and their transmissivity of 92% is comparable with the finest western-made binoculars. The 15x85 binoculars reveal the outer spiral arm of the Andromeda Galaxy during the late clear autumn nights, the Merope Nebula in Pleiades, and many more unexpected wonders.

    All these binoculars come from China, and they will be rebranded all over the world.

    Wishing you the best choice,

    JG
    Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Docter Nobilem 7x50 Porro; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW ASPH); EPs:Baader Classic Orthos; Fujiyama ortho, Leica B WW, ultrawide zoom ASPH, Periplan GF, HC Plan S, L; DOCTER UWA; Wild UW mil; Tele Vue Delos, Nagler Zoom, Plössls; Swarovski SW; Pentax XW; ZEISS diascope B WW T*, Carl Zeiss E-Pl; Hensoldt mil; Filters: Astrodon, Astronomik, Baader (CCD), TS;
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    Thank you, as i understood 15x70 doesnt feel much more different. But 20x80 is better. So, for observing is there any different or difficulty between both of them?
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    Quote Originally Posted by Giray Gencaslan View Post
    Thank you, as i understood 15x70 doesnt feel much more different. But 20x80 is better. So, for observing is there any different or difficulty between both of them?
    Hello Giray,

    the only issue is the weight of the 20x80 and 22x85 binoculars. They require heavy duty tripods and fluid friction pan heads. I am using the Cullmann Titan CT200, and the Velbon CT tripods (2 pieces). The CT stands for the central (geared) column: ramping up/down the binoculars makes the observations significantly more comfortable.

    The lightweight 15x70 binoculars can be still handheld, and I have also used the 20x80 binoculars handheld, but that requires some muscle training, ha, ha.

    Best,

    JG
    Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Docter Nobilem 7x50 Porro; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW ASPH); EPs:Baader Classic Orthos; Fujiyama ortho, Leica B WW, ultrawide zoom ASPH, Periplan GF, HC Plan S, L; DOCTER UWA; Wild UW mil; Tele Vue Delos, Nagler Zoom, Plössls; Swarovski SW; Pentax XW; ZEISS diascope B WW T*, Carl Zeiss E-Pl; Hensoldt mil; Filters: Astrodon, Astronomik, Baader (CCD), TS;
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    great info

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    Giray Gencaslan's Avatar
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    Thank you J.Gardavsky.

    Any other idea?
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    Hello Giray,

    all depends what your deep sky targets will be, and how much you want to invest in your equipment.

    My mostly used binoculars are the 25x100FB. Now, there is an upgrade Teleskop-Express: 25x100 giant binoculars - LE Series - high power binoculars with better multicoatings. These binoculars are the classics for the galaxies hunting, open clusters, and nebulae. Putting your location into the Google Map, you should be about 100 km far away from the lights of Istanbul, leaving the light pollution far away in the west. Hence, I can imagine, that with these binoculars you should be able to fix all Messier's objects within 1 year.

    Best,

    JG
    Binoculars: Leica Ultravid 7x42, 8x42HD; Swarovski EL 8.5x42 Swarovision; Nikon 10x70 Astroluxe; Docter Nobilem 7x50 Porro; Jenoptem 7x50W, 10x50W; BA8: 10.5x70, 15x85; 25x100FB, AsahiPentax 8x40, Refractors: Sky-Watcher 150mm/750mm; Leica APO Televid 82mm (25x-50x WW ASPH); EPs:Baader Classic Orthos; Fujiyama ortho, Leica B WW, ultrawide zoom ASPH, Periplan GF, HC Plan S, L; DOCTER UWA; Wild UW mil; Tele Vue Delos, Nagler Zoom, Plössls; Swarovski SW; Pentax XW; ZEISS diascope B WW T*, Carl Zeiss E-Pl; Hensoldt mil; Filters: Astrodon, Astronomik, Baader (CCD), TS;
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    Giray Gencaslan's Avatar
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    Default Re: Celestron SkyMaster 115x70 or 20x80

    Quote Originally Posted by j.gardavsky View Post
    Hello Giray,

    all depends what your deep sky targets will be, and how much you want to invest in your equipment.

    My mostly used binoculars are the 25x100FB. Now, there is an upgrade Teleskop-Express: 25x100 giant binoculars - LE Series - high power binoculars with better multicoatings. These binoculars are the classics for the galaxies hunting, open clusters, and nebulae. Putting your location into the Google Map, you should be about 100 km far away from the lights of Istanbul, leaving the light pollution far away in the west. Hence, I can imagine, that with these binoculars you should be able to fix all Messier's objects within 1 year.

    Best,

    JG
    Thank you, so much . 25x100 is too much for my budget, i think 20x80 is better. Last nigh i saw Lagoon nebula and M7 with my Minolta Classic 10x50, especially lagoon nebula was so beautiful. I think i need 20x80 bino . Vanguard MK-4 is enought for 20x80?
    Last edited by Giray Gencaslan; 06-27-2013 at 06:49 AM. Reason: Wrong syntax
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    Default Re: Celestron 15x70 or 20x80

    I have the Celestron 20x80 and think they are superb - great value for the money. Keep in mind though that they are heavy and magnify a lot so be prepared to consider a pipe mount or anything to help you use them. I can use them lying on the ground with two pillows holding the binos all the way at the end. You need support everywhere you can get it. Otherwise images are flying through your view erratically and you will be disappointed. Just so you know. Aside from that, they are great.
    ... Henk. Telescopes: 6" Mak-Newt (Comet Hunter), ES ED127CF, ES ED80, Zhumell Z12, Coulter Odyssey 10, AT6RC, Venture RX-7, Celestron Skymaster 20x80, Mounts and tripod: Losmandy G11S, AVX, LXD55, Tiltall, Cameras: Fuji X-a1, Canon SX40, Xt, XSi, T6, ELPH 100HS, DIY: Dob and camera barndoor trackers, afocal adapter, Dob with foldable base and Az/Alt setting circles, Accessories: SSAG, Plossls, Barlows, Telrad, laser collimators (Seben LK1, Z12, Howie Glatter), Cheshire, 2 Orion RACIs 8x50, Software: DSS, ImageMagick, PHD, Nebulosity, Photo Gallery, Gimp, CHDK

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