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Zhumell Tachyon 25x100mm Astronomy Binoculars with Locking Aluminum Case

Item # HN-ZHUG002

Dimensions & Specifications

Binoculars Series
Zhumell Astronomical Binoculars
Brand
Zhumell
Close Focusing Distance
80 ft.
Dimensions (in)
10.8H x 15.4L x 5.5W Inches
Exit Pupil
4 mm
Eye Relief
15.44 mm
Eyecups
Fold Down
Features
Waterproof
Field of View at 1000 Yards
157 ft.
Focus Type
Individual Focus
Interpupillary Distance
57mm-70mm
Lens Coating
Fully Multi-Coated
Magnification
25x
Objective Lens Diameter
100 mm
Prism Glass
BaK-4
Prism Type
Porro Prism Binoculars
Size
Giant Binoculars
Tripod Adaptable
Yes
Twilight Factor
50
Waterproof
Yes
Weight
164.8 oz.

Product Guarantee

Return & Exchange Policy

  • Upgrade & Save!  Buy the Tachyon Binocular/Tripod Bundle
  • BaK4 prisms for excellent light transmission
  • Individual focus for precise adjustment
  • Waterproof and nitrogen-purged
  • Accepts 1.25-inch threaded astronomical filters
Images
Full Description
Specifications
Guarantee & Returns
Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
Zhumell Tachyon 25x100mm Astronomy Binoculars with Locking Aluminum Case
 
4.5

(based on 239 reviews)

Ratings Distribution

  • 5 Stars

     

    (147)

  • 4 Stars

     

    (78)

  • 3 Stars

     

    (6)

  • 2 Stars

     

    (4)

  • 1 Stars

     

    (4)

95%

of respondents would recommend this to a friend.

Pros

  • Strong construction (160)
  • Quality lenses (139)
  • Works well with glasses (68)
  • Close focus (49)
  • Waterproof (25)

Cons

  • Heavy (79)
  • Heavy / bulky (48)
  • Difficult to focus (9)
  • Unstable (9)
  • Poor quality (4)

Best Uses

  • Astronomy (99)
  • Bird watching (65)
  • Wildlife viewing (53)
  • Hunting (13)
  • Security (11)
    • Reviewer Profile:
    • Casual/ recreational (149), Avid adventurer (47), Professional guide (5)
    • Was this a gift?:
    • No (92), Yes (18)

Most Liked Positive Review

 

WOW!!!! BUCKETS OF LIGHT

First off, I respect all experienced lensmen and experienced astronomers as they know more than I do about astronomy and lenses, I respect and regard their views to the highest regard regarding telescopes and ...Read complete review

First off, I respect all experienced lensmen and experienced astronomers as they know more than I do about astronomy and lenses, I respect and regard their views to the highest regard regarding telescopes and binoculars and naturally astronomy. These are my first pair of giant binoculars. Let me tell you the price had me very skeptical about these giants. [...], Giants in the eyes of this beholder. The lenses are coated as I held both objectives and eyepieces up to a light bulb and saw a green hue. I took these Monsters with the heavy duty tripod to a nearby shore during the afternoon hours. I set the binoculars on the tripod, looked through them at a building across the river, each eyepiece was tight at first, then smooth as I adjusted each ocular. Collimation was perfect no problems. "Big deal" I said to myself "a building, what the heck did I waist my money on these giants for?" That is when the fun started, then I aimed these Monsters down the river, which with the naked eye, you really can't see anything going on, with these binoculars I saw tugboats at least 4-5 miles or more away, I could read the writing on these boats and see crew members on them. Then I took my eyes away from the binoculars looked down the river and saw nothing, thats when it hit me, these monsters, although incredibly large are a wonder to behold. Now the amazing thing that got me about these binoculars at this price, was about to happen. The sun was setting at about 7:45 pm, the giants pointed at the same direction, I see birds flying around, My naked eyes alone I could'nt even see them, with these monsters, night time falling I was seeing these seagulls colors and all 4-5 or more miles away, very graphically. I saw a turnpike miles away and saw trucks with their writing on the sides of them. These binoculars suck up light, these Zhumells are perfect at light gathering and distance. Bird watching with these Monsters is a wonder all to itself. The river sharp and perstine. I saw branches and other birds afloat on the water surface miles away from me. These giant objectives provide tack sharp viewing found in much higher end binos. The nightsky is a whole different wonder, Jupiter with it moons are sight to behold with these giants. Stars have definition to them unseen by the naked eye. The moon looks three dimensional. All this and I had sreetlights all around me as I live in a city. I saw no double images or ghosting of any kind. I admit I know very little about astronomy as i'm just getting into it, but these binos are an amazing value at this price. I bought the Zhumell 1/25 moon filters, I could see a blue hue around Jupiter, these filters add a little more to the night time viewing, and are worth getting. Whether your an expert lensmen with the finest optics (Fijinon, Miyachi, etc. or novice to lenses and astronomy, these Zhumell Tachyons are a worthy edition to anyones lens collection. Don't be put off by the price, the Tachyons are not the best in qualty optics as far as Fujinon or Miyachi, Steiner, Vixen Swarovski, etc. Let me tell you these Tachyons are quality all to themselves, believe me, from experienced to the novice you will enjoy the ride these monsters give. Binoculars.com gave me such a good deal with this Tachyon Binocular package that I bought another Tachyon Package to keep in stock, this is a great deal you should take advantage of. A 25 year Zhumell warrenty and you can't go wrong with these Monsters. The Tachyons can easily go for the list price or more and be well worth it even without the tripod. The staff at Binoculars.com are first rate even if you return an item, they are class and very knowledgeble. Take a look at the pictures I have down loaded

VS

Most Liked Negative Review

 

Not so impressive...

First of all, one needs a heavy tripod to use this montrosity. After mounting this in one, I checked the collimation; that's acceptable. The independent focusing knobs are stiff, but maybe after ...Read complete review

First of all, one needs a heavy tripod to use this montrosity. After mounting this in one, I checked the collimation; that's acceptable. The independent focusing knobs are stiff, but maybe after contant use, this should loosen up. This bino are described as FMC (fully multi coated), but I did not find the clarity impressive at all...just so, so. But the one thing I noticed is that Chromatic aberration is pronounced in both barrels. This is supposed to be an astronomical binocular, and with, it won't be useful in spotting objects in the sky. And when I tried it at night, it was just as I had expected. We need clarity binos in spotting planets and the like. For the price, I could add more $$ and get a real astronomical (possibly a Schmidt-Cassegrain or Maksutov) and that's what I've decided to do. But if your objective is to view distant landscape objects, this will do, and a good price at that.

Reviewed by 239 customers

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Displaying reviews 1-5

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5.0

Great Quality and Price

By Thomas

from Idaho Falls ID

About Me Casual/ Recreational

Verified Buyer

Pros

  • Quality Lenses
  • Strong Construction
  • Waterproof
  • Works Well With Glasses

Cons

    Best Uses

    • Astronomy
    • Bird Watching
    • Wildlife Viewing

    Comments about Zhumell Tachyon 25x100mm Astronomy Binoculars with Locking Aluminum Case:

    First of all, these things are huge and weigh over 10 pounds, but the clarity and light gathering capability are amazing. These will be used primarily for terrestial wildlife viewing. The alignment was perfect out of the box. Note that these are individual focus, but you will get used to this very quickly and appreciate the precision when focusing. Be sure you have a very heavy duty tripod with these monsters.

    • Was this a gift?:
    • Yes
     
    5.0

    Bright and Accurate

    By Tom

    from Toronto, Ontario, Canada

    About Me Avid Adventurer

    Verified Buyer

    Pros

    • Close Focus
    • Quality Lenses
    • Strong Construction
    • Waterproof

    Cons

    • Heavy

    Best Uses

      Comments about Zhumell Tachyon 25x100mm Astronomy Binoculars with Locking Aluminum Case:

      Definitely award winning! Bright and accurate. Very heavy. Pairs well with my Manfrotto video tripod. Highly recommend for the price.

      • Was this a gift?:
      • No
       
      5.0

      GREAT PRODUCT RIGHT PRICE

      By Howard

      from LAS VEGAS,NV

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Quality Lenses
      • Strong Construction
      • Works Well With Glasses

      Cons

      • Bulky
      • Heavy

      Best Uses

      • Wildlife Viewing

      Comments about Zhumell Tachyon 25x100mm Astronomy Binoculars with Locking Aluminum Case:

      Bought two pair with the ZHUMELL tripods for ISON (alas, it blew up) have used for general macro star gazing with young children and for mountain viewing. Very well built, lots of light easy to focus and clarity is superb
      Downside: VERY heavy so use the carrying case but beware, that case is deceptive in that it "looks" rugged but is fiber board and glue
      Recommend to all

      • Was this a gift?:
      • No

      (1 of 1 customers found this review helpful)

       
      4.0

      Great product.

      By Richard

      from LEOMINSTER,MA

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Close Focus
      • Quality Lenses
      • Strong Construction

      Cons

      • Heavy

      Best Uses

      • Best With Tripod
      • Star gazing

      Comments about Zhumell Tachyon 25x100mm Astronomy Binoculars with Locking Aluminum Case:

      These binoculars are better than the telescopes I currently own. Tripod is a must for carefree viewing.

      • Was this a gift?:
      • No

      (1 of 1 customers found this review helpful)

       
      5.0

      No issues with Shipping

      By Barb

      from Cakgary,ZZ

      About Me Casual/ Recreational

      Verified Buyer

      Pros

      • Close Focus

      Cons

        Best Uses

        • Astronomy

        Comments about Zhumell Tachyon 25x100mm Astronomy Binoculars with Locking Aluminum Case:

        We ordered these on line for my son. So far we have no complaints. There was no issues what so ever with the order. I am sure my son will enjoy these. I would order from this site again.

        • Was this a gift?:
        • Yes

        Displaying reviews 1-5

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        Customer Q & A

        14 Questions About This Product
        Q: "I am interested in this Zhumell 25x100, besides looking at stars, can it use for other outdoor activities as viewing birds and sailing regatta?"
        A: Absolutely, although with that high of a magnification you will definitely want to use it with a tripod.
        Q: "Is there much of a noticable difference in what I will see in the night sky [planets, nebula, moons, ect] in viewing between the Zhumell Tachyon 25x100 and the Zhumell Super Giant 20x80 Astro-binoculars?"
        A: The difference is that the magnification will bring things 5x closer with the Tachyon.
        Q: "I'm thinking of purchasing a set of Tachyon 25x100 binoculars as I over look a harbor I like to look at the ships in the distance. Could you please tell me if these binoculars set up on a tripod would be suitable for that purpose? And would you send me details of the type of tripod?"
        A: These would definitely be a great choice for that use. They are designed to work with any standard photographic tripod the one we sell the most with these are the Zhumell professional tripods.
        Q: "How much is the weight, length and width of this binoculars?"
        A: The weight is 9.75 lbs., the length is 15.4 inches and the width is 10.8 inches.
        Q: "We travel a lot and spend a lot of time in the blue ridge mountains and like to use our binoculars to see into the valleys. We have 28x80 and are interested in the tachyon 25x100. Would this be a good binocular for this application?"
        A: It would definitely be a great binocular for that use, generally as you get higher than this in magnification the binocular is either a zoom or it is just too large to really carry around with you. These are big, but the aluminum case it comes with is nice for traveling.
        Q: "I wear glasses, would this item be good for my eyes?"
        A: Because this is an individual focus once you focus the binoculars they are set for your eyes to view distance, this makes them good with or without glasses.
        Q: "Where are the Tachyon binoculars manufactured?  Where are the lenses ground?"
        A: Both the lens grinding and manufacturing is done in China.
        Q: "Do these use a BAK 4 prism?"
        A: The Zhumell Tachyon 25x100 binocular does indeed use BaK4 glass in its prisms.
        Q: "How many elements make up the eye pieces? What percent of the field of view is sharp?"
        A: The Tachyon's eyepieces contain three elements. Because the binocular uses BaK4 prisms, the entire field of view is sharp.
        Q: "Are these binoculars achromatic or apochromatic? I would rather not deal with any chromatic aberration. How hard is it to aim these? Is it possible to mount a simple red dot finder to them or is it not needed?"
        A: The Zhumell Tachyon 25x100 Astronomical Binoculars are achromatic. It probably would be possible to mount a simple red dot sight on them, but there's probably no need.
        Q: "Are these waterproof?"
        A: The Zhumell Tachyon 25x100 Astronomical Binocular IS waterproof.
        Q: "My heavy duty tripod does have the quick release plate, and I do have the plate w/bolt that I used for my video camera. Would I still have to have an L bracket to hook up the Tachyon 25X100 to this tripod?"
        A: You will not need an L-mount adapter with the Tachyon 25x100 Astronomical Binocular. It has a tripod adapter that will mount directly on the tripod.
        Q: "Which Tripod is the best for the Zhumell Tachyon 25x100 Astronomical Binoculars?"
        A: We recommend the Zhumell Heavy Duty Tripod for use with the Zhumell Tachyon 25x100 Astronomical Binoculars.
        Q: "Are there instructions for these binoculars?
        A: All of the manuals are downloadable from the Zhumell website at http://www.zhumell.com
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