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100mm and Larger Binoculars Archives

Burgess Optical 25x100 Binoculars

Jan 05 2010 08:24 AM | aa5te in 100mm and Larger Binoculars

The case that the Burgess pair came with is vinyl/pleather covered with a combo zipper/velcro closure and has some padding and stiffness. You wouldn't want to drop them while they're in this case, but it's good for

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Author name: Shane Passmore
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Celestron SkyMaster 25x100 Binoculars

Dec 18 2009 08:00 AM | nayan in 100mm and Larger Binoculars

Celestron shipped me the product in a Nylon bag with a decent cushioned support. Though I was expecting sturdier bag like Zhumell 25x100 case but unfortunately it came out in a Nylon bag. Overall binocular looks good and has a decent

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Author name: Nayan Chakravarty
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Apogee 25x100 Binoculars

Dec 14 2009 07:56 AM | aa5te in 100mm and Larger Binoculars

The case that they arrived in is a combo zipper/Velcro closure and has some padding and stiffness. You wouldn't want to drop them while they're in this case, but it's good for transporting them for short distances and it

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Author name: Shane Passmore
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ZHUMELL TACHYON 25 x100 Astronomical Binoculars with Heavy Duty Tripod

Dec 08 2009 07:14 AM | BDUBU in 100mm and Larger Binoculars

Being that I am rather new to this hobby, I wanted to get a pair of large binoculars without breaking the bank to re-familiarize myself with the sky before spending big money on a scope

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Author name: Bryan Williams
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Garrett Optical 30x100 Binoculars

Mar 03 2007 02:42 AM | Guest in 100mm and Larger Binoculars

Why 30x100? I wanted something bigger than 70 mm, but simply couldn't afford bigger than 100 (and dealing with the weight associated with 100mm+), and had a difficult time choosing between 25x and 30x.

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Author name: Victor Barbu
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Oberwerk 45-deg 100mm Binocular Telescope

Dec 22 2006 04:41 AM | Mark Stephenson in 100mm and Larger Binoculars

I have been an amateur astronomer for over 40 years, during which time I've owned/used many instruments

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Author name: Mark Stephenson
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Garrett Optical 25x100 IF Binoculars

Mar 30 2006 03:03 PM | Art Fritzson in 100mm and Larger Binoculars

I wanted to try some “serious” tripod based observing with the same simplicity as the Obies. 20x80 seemed too small a step up and there was a nice selection of 25x100s on the market. So it was time

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Author name: Art Fritzson
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Miyauchi Saturn III vs Tele Vue 127

Jan 27 2006 03:37 AM | Guest in 100mm and Larger Binoculars

This won't be a scientific comparison - just some rambling observing notes over the course of some five hours of observing with both.

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Author name: C.E. Steuart Dewar
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Strathspey 25x100 45-deg Binocular Telescope

Jan 10 2006 02:34 AM | Guest in 100mm and Larger Binoculars

Review of Strathspey 25 x 100, 45 degree telescope binoculars Helical focusers with inter-changeable 1.25" eyepieces

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Author name: Derrick McCourt
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BT100 Binoculars for Birding

Dec 06 2005 04:16 AM | Guest in 100mm and Larger Binoculars

You've read all about using BT100 binoculars for astronomy, but they do have other applications, so here is an alternative view of them!

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Author name: Graham Brown
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One Year Review: Apogee 25 x 100mm Binoculars

Sep 14 2005 06:26 AM | Guest in 100mm and Larger Binoculars

First rule for this beast is, “If you buy them, you must mount them.” I have tried several ways to mount them but I always resort to cheating somewhat. I used the Orion Paragon-Plus binocular mount

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Author name: Joseph Rome
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Celestron 25x100mm Skymaster Binoculars

May 10 2005 02:52 AM | Glassthrower in 100mm and Larger Binoculars

Inexpensive 25x100mm Celestron Skymaster Binoculars

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Author name: Michael Gilmer
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Astromeccanica/Hutech Borg 100ED Binoscope

Mar 14 2005 11:15 AM | Guest in 100mm and Larger Binoculars

This instrument is a hybrid 100mm binocular made up of a light-gathering front end using Borg 100ED objectives and a viewing back end using an Astromeccanica multi-mirror assembly in place of conventional prisms. I have no connection whatsoever with Borg, Astromeccanica or Hutech from whom I purchased this binoscope, nor did they know I would be writing this review. All photos are by the author.

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Author name: Milton E. Wilcox
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Apogee 25x100 versus BT-80

Mar 14 2005 11:08 AM | michiel in 100mm and Larger Binoculars

Hello, it’s me again. The wonderful thing about owning more various telescopes is that the amount of comparison reports that you can write goes up fast. I always like to compare so here we go. To introduce myself, I am living near the north sea coast in the suburbs of a large town in the Netherlands, I have a background in physics and astronomy. I have written some reviews for CN about an ETX70, a BT 80 binoscope, and a TAL 200K klevtsov with a Baader Binoviewer. At the moment I also own a 150mm F10 refractor and a 12 inch F4 newton light bucket and a 102mmf6 triplet achromat. Well, the word “ also” is rather misplaced because at this moment the TAL and the BT have been sold to what I heard very happy owners, I sold them not because I was not satisfied with them but because the quest for other scopes goes on and I cannot keep them all. (This is where my wife does not follow me anymore, once she asked me if amateur astronomy is only about buying and selling scopes, well…. It is part of the fun)

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Author name: Michiel Claessen
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I.T.E. LABT-100 Large Aperture Binocular

Mar 15 2005 06:41 AM | Guest in 100mm and Larger Binoculars

I am a huge fan of viewing the night sky with binoculars, but find that ordinary 50-70mm binoculars don't allow me to see "deep" enough into the night sky, owing to their rather limited aperture and hence light gathering capacity. Larger binoculars, however, are quite expensive and many yield optically unacceptable images (e.g., one such pair of binocs are those marketed by a well known binocular and telescope catalog company...) for premium prices. Nevertheless, the joy of hopping from globular cluster to galaxy cannot be underestimated when behind the helm of a good pair of large binoculars. So when I saw that I.T.E. was offering a modified version of the slowly-becoming-popular 25x/40x-100mm Chinese border patrol binoculars, I decided to give them

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Author name: Joshua Finkler
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Celestron SkyMaster 25x100 Binoculars

Mar 14 2005 11:36 AM | Guest in 100mm and Larger Binoculars

I was introduced to astronomy at 13 with a 60mm TASCO telescope on a terrible Alt-Az mount. I used that scope consistently and frequently until I discovered girls. Thirty years later, I acquired a nearly identical scope as part of an estate. I cleaned it up and carried it outside into the ice and snow of a New Hampshire winter and was instantly hooked again. Now, 7 years later and living in Tucson, AZ I have three scopes and get out twice or more per week (at least as far as the back yard). I have a superb sample of the Celestron CR-150 (f/8) achromatic refractor on an Orion Atlas mount. I use it with a violet blocking filter for the moon, planets, and doubles. I also have a reasonably good and heavily modified Meade SF-16 dob for deep sky. Finally, I have a wonderful Celestron Ultima 2000 (8 inch) and CCD camera for deep sky photos, comet chasing, and asteroid tracking. What was missing was a low power wide-field grab and go scope for the 5 nights of the week when I have only an hour or so to observe. I bought an ST-80 (80mm f/5) to fill that gap, but it sprouted guide rings and attached itself to the SF-16 as a finder scope.

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Author name: Myron Calkins
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Oberwerk 100mm BT's

Mar 14 2005 10:18 AM | Guest in 100mm and Larger Binoculars

I have always wanted to spend the night slowly scanning the skies with a large pair of binoculars. Well, for the last five weeks I finally got that chance. I received a pair of the Oberwerk 100 BT's from Kevin Busarow at BigBinoculars.com in mid December. If you are not familiar with these, they are a highly modified version of the well known "100mm Chinese Border Binoculars" which have been adapted to use standard 1.25 eyepieces and have non-rotating helical focusers for astronomical use. They are a "straight through" design, which boast broadband multi-coatings on all glass to air surfaces.

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Author name: Ron Davidson
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Binoscope

Mar 14 2005 11:13 AM | Guest in 100mm and Larger Binoculars

I have been searching for an outstanding pair of medium aperture (4-6") binoculars to cruise the galaxy for several years. Thanks to a brilliant designer named Tatsuro Matsumoto in Japan and a great amateur telescope maker named Joe Castoro in New York I believe my search is finally over.

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Author name: Derek Wong
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Fujinon 150mm Binoculars

Mar 14 2005 01:34 PM | Guest in 100mm and Larger Binoculars

With the discovery of the Hyakutake comet the worlds largest binocular has become known to the general public. Fujinon binoculars have been predominently used in the marine environment and are extremely robust and water resistant. The nitrogen filled interior prevents dew formation of the internal optical surfaces.

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Author name: Martin Birkmaier
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Nikon 20 x 120 III Binoculars

Mar 16 2005 07:15 AM | Guest in 100mm and Larger Binoculars

I've always had an interest in optics, even at an early age. Over the years I've had several different types of high quality, small binoculars that I've used for bird watching; Leica, Ziess, Swarovski and Nikon. I currently use and love my Nikon LX 8x42s. They fit my hands perfectly and the optics are second to none. I've always wanted a large pair of binos that have the quality of Nikons. I'd thought about the 25x150 Fujinons. At one time I had the 10x70 Fujis and was not impressed.

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Author name: Rob Moore
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Nikon 20 x 120mm Binoculars

Mar 16 2005 07:21 AM | APM M.Ludes in 100mm and Larger Binoculars

Lately I have noticed that a number of binocular observers are asking how the Nikon 20 x 120s perform against other large binoculars , such as Vixen , Myauchi and Fujinon. I have traveled to many dark site star parties in Europe and USA, in which I've had the opportunity to use the Nikons at some length under ideal conditions.

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Author name: Markus Ludes
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Oberwerk 25 x 100mm Binoculars

Mar 16 2005 07:30 AM | Mr. Bill in 100mm and Larger Binoculars

I have just returned from 5 days camping in the White Mountains on the California-Nevada border at 8600 feet and in central Nevada at 7600 feet under good to excellent seeing and transparency. I had ample time to evaluate the Oberwerk 25x100 astronomy binoculars (made in China), using them 3-4 hours each night. The following are my impressions on both the viewing and an evaluation of the the optics and mechanics of the binoculars.

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Author name: Bill Faatz
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Pro-Optic 25x100 Binoculars

Mar 16 2005 09:00 AM | cosmic rays in 100mm and Larger Binoculars

Mounted on a fluid head, these “Ultra Giant” binos needs a counterweight when pointed toward zenith. They also need a second arm (not shown) to move effortlessly from target to target, and to take advantage of the smooth movements of the excellent mount.

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Author name: Joseph Drapell
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Apogee 25x100 Binoculars

Mar 14 2005 11:02 AM | Guest in 100mm and Larger Binoculars

I have been enjoying astronomy for over forty years. I own a 10” f/4.5 dob, a 80mm f/5 refractor on a GEM, a twin 8” Newtonian binocular scope that I just finished making (I call it Dyno Bino), a pair of Binolux 7x35 binoculars as well as a pair of 12x60 Visioneer binoculars that I use on a home made parallelogram mount. I have always preferred two eyed viewing and lately I have been on a quest of sorts to explore the various ways to use both eyes in astronomical observing. Hence my “Dyno-Bino” project. Wonderful viewing, comfortable, less eye strain, etc, but the drawback (isn’t there always something) is ease of portability. Just as I purchased my 80mm f/5 for a quick ‘grab and go’ scope, I needed something as an alternative to the binoscope for quicker setups. And the other day I received delivery of my new Apogee 25x100 binos! Introductory cost of $299 plus $ 20 S&H.

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Author name: Eugene Artemyeff
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Notes on Fujinon 25x150 binoculars

Mar 14 2005 01:20 PM | Mr. Bill in 100mm and Larger Binoculars

Color is what one would expect from a f/5 achromat with air spaced doublet objective; definitely there but not objectionable. During daytime observing, it is noticeable as a thin yellow or violet band defining sharp changes in contrast such as the edge of a barn's metal roof against the background of shadow. If daytime observing was the primary use of these binoculars, then maybe the ED glass option would be worth consideration. The moon shows a small amount of color along the limb, but the surface detail and subtle gradations of color are remarkable. For deep sky use, however, the color is of little concern.

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Author name: Mr. Bill
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