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Binoviewers Archives

BIPH - A Tour of the Invisible Universe

Dec 29 2009 07:15 AM | StarryHost in Binoviewers

BIPH is a generation 3 military night vision device that has been ingeniously adapted for astronomical use. It uses a barrel which fits into any two inch focuser and

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Author name: Jack Swaton
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Antares Binoviewer vs. TeleVue Bino Vue - PoorBoy vs. the Prince

Dec 22 2009 10:10 AM | QS3000 in Binoviewers

Recently I had the chance to test two binoviewers, the Antares 1.25-inch binocular eyepiece holder and the TeleVue Bino Vue with 2X amplifier, a piece of hardware that many amateur astronomers dream

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Author name: Dr Fanis
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Earthwin PFS-B Binoviewer

Sep 02 2009 06:54 AM | altair1956 in Binoviewers

At NEAF in 2008, I purchased a new PFS-B binoviewer from Earthwin optical to use with my 16" scope. This is the unit that has the 3X power switches and the ability to slide 2 different filters in and out, one at a time

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Author name: Steve Hubbard
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Denkmeier Filter Switch

Aug 16 2007 04:37 AM | Snaproll in Binoviewers

Denkmeier Filter Switch

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Author name: Jim Welisek
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Denkmeier Power x Switch Diagonal

Mar 06 2007 01:44 AM | Guest in Binoviewers

I was going through the diagonal reviews and found that no one has done a review on the Denkmeier line of switch diagonals.

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Author name: James Welisek
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Siebert 0.6X OCA for SCT

Jan 23 2006 02:09 AM | suphotpu in Binoviewers

This is my personal experience with Siebert 0.6X OCA that I would like to share with you.

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Author name: Suphot Punnachaiya
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Siebert Black Night Binoviewer

Dec 30 2005 02:53 AM | Manuel Reyes in Binoviewers

I am having a lot of fun with this binoviewer while I wait for my 45mm Elite to be finished so heres my story.

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Author name: Manuel Reyes
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Vernonscope Bino-Viewer Outfit

Nov 19 2005 06:27 AM | Chris Lord in Binoviewers

To compliment my TEC140APO and enhance my visual H-alpha work I decided to invest in a high quality bino-viewer

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Author name: Chris Lord
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First Light with a Burgess Optics Binoviewer

Sep 28 2005 07:06 AM | Guest in Binoviewers

One of my apprehensions regarding binoviewing was the statement that some people have trouble merging the two images. I was also apprehensive about the ease of centering the eyepieces in their drawtubes. As it turns out, I am apparently one of those people who don't have trouble merging images.

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Author name: Eric Africa
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Gary Russell Mirror Binoviewer Review

Mar 13 2005 05:18 AM | Guest in Binoviewers

Both my wife Josephine and I have about 3 1/2 years experience in amateur astronomy, almost exclusively in Utah where the transparency is usually good to excellent because of the altitude (4,500 to 10,000 feet), but the seeing is rarely steady. We regularly view through a 16" f 4.5 Newtonian, rather less often through our salvaged 6" f10 Intes Micro Alter M603 Maksutov-Cassigrain (we're spoiled by larger aperture), and since March of this year, a 24" f4 Newtonian. Although we very much enjoy looking at the moon and planets, we primarily go after deep-sky objects. Neither of us had ever looked through a binoviewer until shortly before

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Author name: Allen and Josephine Grahn
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2" Siebert Black Knight Binoviewer

Mar 28 2005 11:15 AM | Guest in Binoviewers

Imagine a Celestron 14" aperture SCT GoTo scope with XLT coatings, Fastar compatibility, all on Celestron's German Equatorial Mount. Now mix in Harry Siebert's 40mm 2" Black Knight Binoviewers, a set of Harry's 2" 34mm wide-view eyepieces, a .4 reducer/corrector, a "multimag" that when

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Author name: Jason Davis
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2" Siebert Black Knight Binoviewer

Mar 28 2005 01:17 PM | Guest in Binoviewers

Imagine a Celestron 14" aperture SCT GoTo scope with XLT coatings, Fastar compatibility, all on Celestron's German Equatorial Mount. Now mix in Harry Siebert's 40mm 2" Black Knight Binoviewers, a set of Harry's 2" 34mm wide-view eyepieces, a .4 reducer/corrector, a "multimag" that when used with the reducer/corrector will go to 1.5-2x magnification, and when not used with the reducer/corrector will go to 2-2.5 x magnification, and finally add to all that two 22mm Naglers (honest!) for use in the binos, which I acquired from the fine folks at Anacortes.

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Author name: Jason Davis
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The Return of the Denkmeier

Mar 09 2005 02:51 PM | rmollise in Binoviewers

By way of background, before I had the chance to test the 2" Denkmeier, I was not much of a fan of binoviewers in general. I had never had much success using them. I couldn't ever seem to completely merge images, and the resulting eyestrain and headaches meant I avoided them like the plague. However....

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Author name: Rod Mollise
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Binoviewer Shootout in the Arizona Desert

Mar 09 2005 01:39 PM | Guest in Binoviewers

I contacted Allister St. Claire about the desirability of a test like this as a Cloudy Nights review. He responded positively, and gave me some pointers for the review. We set up review documents and got ready to do our testing.

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Author name: Jim Gutman
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A Binoviewer Journey: Of Microscope Heads, Denkmeier and Tele Vue

Mar 09 2005 10:36 AM | CN_Admin in Binoviewers

…I saw detail that I have *never* seen before in a scope this small. This HAD to be due, at least in part, to the binoviewer.

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Author name: Tom Trusock
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Binoviewer

Mar 11 2005 12:08 PM | Phil Barker in Binoviewers

The binoviewers came with a barlow lens of about 15mm aperture. This is removable and seems to increase the effective focal length by around 1.5-1.8 X. The barlow has lovely deep red coatings. Using the reflection test and looking at the reflection of a bright light it is apparent the coatings on this barlow are very good

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Author name: Phil Barker
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Siebert Binoveiwer vs. Tele vue Bino Vue

Mar 12 2005 11:57 AM | Guest in Binoviewers

Well, I did a test of the Siebert and the Tele Vue BV's tonight on some DSO's before the moon came up, then later on I gave them a shot at Saturn when the planet was near zenith

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Author name: Jim Nadeau
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Takahashi Twin-View binoviewer (PR)

Mar 12 2005 11:07 AM | tb2008 in Binoviewers

I always wanted a big bino, but never found exactly the perfect one. Chromatic aberration, lack of eye-relief, impossibility anyway to use it without mount, made me wondering if a binoviewer in combination with my Borg 100ED on a simple mount would not be a better alternative: This scope gives much better images with a good low power eyepiece than a Miyauchi 100 mm fluo bino for instance.

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Author name: Tim Bouman
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B-W Optic Binoviewer

Mar 13 2005 07:21 AM | Guest in Binoviewers

I recently acquired a Lumicon/B-W Optik Binoviewer and enough paired eyepieces for a selection of focal lengths. While I was home last weekend the clouds parted long enough for some observing. On the same nights I was evaluating the vintage Vixen 80mm F15 refractor I was checking out this binoviewer (BV) in a C-5 and a Vixen 80mm F8 Fluorite. Here is my

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Author name: Mike McIsaac
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My Experiences in Buying a Binoviewer

Mar 13 2005 05:14 AM | Guest in Binoviewers

Binoviewers may need no introduction to some of you but for those in the market for a binocular viewer for their telescope, I hope to discuss the reasons I chose the Tele Vue Bino Vue rather than some of the more inexpensive models.

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Author name: Jim Nadeau
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Gary Russell Optics (GRO) Mirror Binoviewer

Mar 13 2005 05:16 AM | Guest in Binoviewers

I finally got to try my binoviewer with my 12.5" f/4.8 dobsonian. I was at my clubs (The Pontchartrain Astronomy Society) dark sky site. I tried the BV in several different configurations, using 30mm and 18mm pairs of Celestron Ultima Plossl's.

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Author name: Jim Nadeau
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Comcon 45-deg Binoviewer

Mar 13 2005 07:31 AM | Guest in Binoviewers

The Binoviewer arrived from Allister at cloudy nights with 2 19mm Plossl eyepieces. The plossls seemed to be homemade but quite useable. They did have too little eye relief for my taste though. I am not sure if these are supplied with the binoviewer or if Allister sent them along in case whoever may be testing the units didn't have eyepiece "sets". The unit is tough looking and feels quite sturdy. The adjustment for interpupilary distance is just like a set of binoculars. Focus did not change when adjusting interpupilary distance. I found it easy to "merge" the images using them, so the collimation must have been fine. (

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Author name: Jim Nadeau
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