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  1. #1
    halfro's Avatar
    halfro Guest

    Default 20X100 25x100 Binocular



    some company are advertising this type of binoculars for $199 to $259.00 are this any good???
    comments would be appreciated, while these binocs are not expensive, I do not want to throw
    money away.

  2. #2
    Szaki's Avatar
    Szaki Guest

    Default 20X100 25x100 Binocular

    Got my Apogee 25x100 for $300, over a year ago. Came in a nice soft case. Very happy with it. I don't know about the other, cheaper brands.
    I think Celestron has a 100mm bino for around $300, it has a center focuser, mine don't have.

    Julius

    "halfro" <halfrolich@comcast.net> wrote in message news:7fc2c.52145$ko6.402486@attbi_s02...
    some company are advertising this type of binoculars for $199 to $259.00 are this any good???
    comments would be appreciated, while these binocs are not expensive, I do not want to throw
    money away.

  3. #3
    Ioannis's Avatar
    Ioannis Guest

    Default 20X100 25x100 Binocular

    Ο "halfro" <halfrolich@comcast.net> *γραψε στο μήνυμα
    news:7fc2c.52145$ko6.402486@attbi_s02...
    some company are advertising this type of binoculars for $199 to $259.00
    are this any good???
    comments would be appreciated, while these binocs are not expensive, I do
    not want to throw
    money away.

    Apogee. It's probably the only company that has 20x100 so inexpensive. Here
    are some quick thoughts:

    I got mine yesterday. They are impossible to look through without a tripod.
    First. Second, I do notice some intense violet chromatic aberation, during
    daytime use, but the aberation is not much more than on my 11x80 Japanese
    Chinons. It's to be expected with such large lenses.

    For nightime, they are a blast. I tested them a little yesterday, outside my
    balcony. I could see at night, under almost black skies the mast of an
    antenna, 20 km's away. They focus nicely, and they are a sturdy
    construction. I do detect minor spectra of the street lights, particularly
    mercury lights around the edges, but again, it's not worse than with my
    11x80 Chinons. The chromatic aberation is more intense around the edges, of
    course.

    I haven't noticed any substancial spherical aberation around the edges.
    Images are quite sharp and flat to the edge.

    I will have a chance to test drive them in the Antiparos Greek isle, around
    Easter, so till then I cannot offer any substancial advice, but they seem
    quite a respectable pair. Ok, they are not Miyachi's, but i'd say they are
    the best value for such a price. And their normal price is actually $350, so
    they are not really that inexpensive. Apogee has a special on them.

    I am so far very very happy with them.
    --
    Ioannis Galidakis
    http://users.forthnet.gr/ath/jgal/
    ------------------------------------------
    Eventually, _everything_ is understandable


  4. #4
    JBortle's Avatar
    JBortle Guest

    Default 20X100 25x100 Binocular

    I can only report that they are of "acceptable" quality for the price. I have a
    pair of the 20x100's. Collimation is a little off (as I'm hearing is quite
    common with these particular binoculars) but the images can be "fused" without
    difficulty. However, and very much to my surprise and general disappointment,
    they do not appear to show diffuse celestial objects (like comets, my special
    interest) any better than do my higher quality pair of 15x70's. As someone who
    has owned a pair of WWII Japanese 20x120's for many years, I have to say the
    newer examples don't hold a candle to the older instrument with regard to what
    can be seen with them.

    John Bortle

  5. #5
    tony hoffman's Avatar
    tony hoffman Guest

    Default 20X100 25x100 Binocular

    I have my eyes on the Oberwerk 22x100s
    (http://www.bigbinoculars.com/22100.htm), about which I have heard a lot of
    good things. They cost slightly more ($395); hopefully, they're worth it.

    --Tony




  6. #6
    Craig Levine's Avatar
    Craig Levine Guest

    Default 20X100 25x100 Binocular

    On Sat, 06 Mar 2004 20:24:36 GMT, "tony hoffman"
    <tonyhoffman@earthlink.net> wrote:


    I have the Oberwwerk 20x80' "Standard" model. It can be bumped out of
    collimation fairly easily, but collimating it is a breeze. There are
    screws under the rubber armour that you adjust to re-collimate. Images
    are good through them, though there is an expected amount of chromatic
    abberration. The long eye-relief and Panoptic-like AFOV makes them
    very comfortable to use with glasses. For the $$, they're a good
    value.

    Cheers,

    - Craig

    Craig Levine
    Observing Chairman
    RASC, Halifax Centre
    www.halifax.rasc.ca



  7. #7
    Ioannis's Avatar
    Ioannis Guest

    Default 20X100 25x100 Binocular

    Ο "Craig Levine" <apoguy@*spamkill*ns.sympatico.ca> *γραψε στο μήνυμα
    news:i9fk40l4kei2v3lbp2eniusbl7q6or2o8j@4ax.com...
    [snip]

    Looking at the 22x100 Oberwerk picts, and my 20x100 Apogee which sits on my
    living room, the overall design appears identical. Same retaining rings,
    same lens cells, both have BaK4 prisms, same tripod support, same tube
    sizes, same porro folding and similar EP endings. The only thing that
    differs seems to be the tube coating finish.

    The Apogee also has 2-3 tiny screws around each porro prism which can be
    used to re-collimate the images. I imagine this is a standard design, which
    has been picked up by various companies in order to mass produce 20x100
    giant binos. There is undoubtedly some small variation between the different
    designs and brands, but overall, I wouldn't expect any major differences,
    qualitywise for this price.

    The Apogee were just a tad out of collimation when I first looked at them,
    but the difference was so slight that my brain adjusted immediatelly upon
    adjusting the Interpupilary Distance a bit. Had it been worse, I would have
    fiddled with the little screws, but there was no need for that.

    I don't see any reason why one would want to pay the extra $150 for the
    Oberwerk, unless there exists some substancial optical difference which I am
    not aware of and affects viewing quality.

    --
    Ioannis Galidakis
    http://users.forthnet.gr/ath/jgal/
    ------------------------------------------
    Eventually, _everything_ is understandable


  8. #8
    edz's Avatar
    edz Guest

    Default 20X100 25x100 Binocular

    Craig Levine <apoguy@*spamkill*ns.sympatico.ca> wrote in message

    I aslo have the 20x80 standards. they have remained collimated since
    the day I got them. I've never had to adjust them. same goes for my
    15x70/'03 models Oberwerks. I've never had to collimate either pair.
    They both have a minor error of about 1 arcmin. No need to adjust for
    that. Both have very good optics.

    Some of the brands do not come fully multi-coated. Look for and
    demand that feature. It does make a considerable difference. I've
    tested the same binocular with and without FMC. I can attest to the
    improvement.

    Some models have a very short right diopter range and will not
    accomodate a poor right eye nearsighted perscription unless galsses
    are always worn.

    The size binocular you are considering will require a very substantial
    mount. A tripod on the order of a Bogen 3221 w/ 501 head or with a
    substantial UA mount, something more than the Unimount Light Deluxe.
    You will pay more for than mount than you will for the binoculars and
    it is a necessity due to the weight of the binocs. On the other hand,
    the 20x80 standards can be mounted on a Bogen 3211 w/3130 head, a
    setup less costly than the binocs. Although they do much better on a
    UA Unimount Light Basic.

    edz

 

 

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