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Thread: Zhumell Tachyon 25x100 !!!!

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    DMouse's Avatar
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    Thumbs up Zhumell Tachyon 25x100 !!!!



    Hi, Just recieved my first astro bins and wow are they huge. I ended up ordering the Zhumell Tachyon 25x100, basically because they're huge and they can accept 1.25 inch filters on the eyepiece end. The only drawback was that I would be getting them from Hayneedles site, Telescopes.com, yes I can hear you all groaning right now, but the price was very good. Anyway, they shipped them here to me with Fedex, which usually charges a brokerage fee and taxes, but not at the door this morning, like UPS do. I may end up getting a bill later, so we will see.
    After opening the box I was stunned on seeing the size of these things, trully huge! The only down was the inside of the case has a dent where the tripod adapter has obviously been bashed and dented the foam linning, lets hope the optics are ok!
    I got out my flimsy camera tripod and promptly took the bins outside. As I live under the flight path to Toronto Pearson airport there is never any shortage of planes to chase. Once I had focus I managed to catch site of an American Airlines B737-800. It looked very crisp and the detail was awesome. I also focused on a neighbours roof and did notice next to the sky there was some chromatic fringing there, the sky is overcast and white today so this probably made it more obvious. So I guess this will mean the Moon and very bright stars may suffer some fringing but I was aware of this before I ordered them.
    I plan on making my own parallelogram mount over the next few weeks that will fit to my HEQ5 tripod. I also guess I will have to wait the obligatory 2 weeks for the sky to clear to actually use them

    Here's a couple of pics to give you some idea of how huge these really are. I will report on night time use once I get chance.

    Clear Skies
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    Congratulations! I have had mine for a few years and really enjoy them when I get them out. They really are nice light buckets for the price. Zhumell has that 25 year warranty too.

    Enjoy!
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    grab Orion neb before its to late Youll love the views

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    before it's too late?

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    Only used (too late) as a seasonal reference as orion will slip farther west and not be visable till fall

    Quote Originally Posted by DapperFattyCobalt View Post
    before it's too late?

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    Thumbs up First Light

    Hi, well as promised, here is my report from the First Light of these monsters.
    I have made a wooden platform to go atop my HEQ5 tripod that can support a small tripod just so I can use these binoculars with some stability, parallelogram mount to be built. But it worked for now and will do.
    Having my new platform I first started by having a look at the Moon, Venus and Jupiter. As they are so close right now and just looked awesome it was a nice place to start. The Moon was the first challenge, focusing is done individually on each eyepiece, as the tube is so long you can't really cover one lense by hand and then focus. As I practiced I got better, and once in focus I was surprised how much detail you can actually see. The moon takes up a good portion of the view but not all of it, so don't expect any Crater surfing views. If the focus is out a little then you will see quite a bit of fringing, but once its spot on this is reduced somewhat.
    Moving on to Venus, super bright and fringing a lot, but I could still see its half lit shape quite well, but very small. Jupiter was a bit disappointing early on as I couldn't see the Moons due to the sky being still blue, but it was there. I am not using any filters at this point but if I had a Moon filter then I may also be able to see some banding on Jupiter. As the sky got darker, the Moon and planets got better, more contrast I guess.
    Once it became fully dark I moved onto some DSO. Of course the prime target being M42, of course. I must state at this point that my neighbours soffit lights were on and lighting my backyard up like having a street light right next to me, so dark adaptation is a problem till they go off, around 11pm. Anyway, M42. The field of view of these bins enables you to get a lot in there at once, from NGC1999 to the running man. The trapezium detail is impressive, with resolution to 4 stars. I could make out the arms of the nebula well, but M43 was not apparent or the running man.
    Next up Alnitak, or the Horsehead nebula area. Alnitka itself was showing a little fringing but still sharp. Sorry but no nebulas here, nowhere near dark enough. So I moved on to NGC869, the perseus double cluster. This is one of my favourite clusters are there are lots of deep red stars hidden in the middle. Once I remembered where it was it didn't take long to find and wow what a nice view. It is very cool to be able to get both clusters in the same field of view which makes viewing a real treat, nice.
    M45 was on the list as was M35, which I didn't find the other night, but I just kept coming back to M42. Its a real shame Spring is here and Orion is leaving us for another season.
    So my overall opinion of these Binoculars.
    Cons: Heavy, Case is a little flimsy, Focusing can be a little tricky
    Pros: Cheap, good optics, great wide views.

    Thanks for reading and Clear Skies
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    Hello DMouse,

    congratulations to your 25x100 binoculars.

    Looking forward to your observational reports

    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 Zhumell Tachyons

    Hello DMouse,

    Thank you for your report! Orion is one of my favorite sky areas. Like you, I miss it as it leaves the sky in the spring. I have some 25 X 100 Tachyons and have had a lot of fun with them.

    I started this hobby(?) with binoculars and eventually discovered the Tachyons. (See photos.) One night I spotted M42 and had my wife take a look. She couldn't believe what she was seeing and said it was the most inspiring view she had seen in a long time. At 25X the nebula wasn't all that big but it appeared like a ghost or bright cloud floating in space.

    Since then I've bought a Dobsonian telescope but I still like to use the Tachyons from time to time.

    Like you, I found the case they came with to be flimsy. In fact, I got the Tachyons at a very low price because the case had been badly damaged. They sent it to me but it wasn't usable. My only other issue is with collimation. I have to tweak them every so often but the images are really worth it.

    I once showed a view of The Beehive Cluster in Cancer through the Tachyons to a pro astronomer and she was quite impressed.

    Good luck with your viewing and clear skies!

    - Amurje




    Last edited by Amurje; 04-01-2012 at 03:55 PM.
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    12" Meade Lightbridge Dob / Zhumell Tachyon 25 X 100 Binoculars "There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle." - Albert Einstein

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    Default Re: Zhumell Tachyon 25x100 !!!!

    Here are mine , I like these and the build quality is amazing for the price . How do they do it ?
    Mine arrived slightly out of columination but 5 minuites with a jewlers screw driver tweeking the 2 small screws under the rubber hand grips fixed that and after 1 year I have not had to touch them , I like the views these give fron the moon , planets and especially deep sky , so good !
    Brian.
    Attached Images Attached Images
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    Default Re: Zhumell Tachyon 25x100 !!!!

    Hello B.Nordstrom,

    congratulations to your big binoculars.
    The mount is very nice. Has the lens hood been included in the package?

    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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