Re: Binocular Question

From: Tom Wagner (
Date: Mon Apr 16 2001 - 14:15:17 PDT

  • Next message: Jonathan T Wojack: "Re: Observations"

    Good stuff Russ.
    Can you send along some images of your "parallelogram arm with my binos
    attached to it"?
    I once paid an eyewear lab to grind my prescription of lens down to a size
    that would fit into a camera eyecup. They sold me the glass lens and did the
    grinding for 10 bucks! That was back in the 70's.
    ----- Original Message -----
    From: "Russ Bessom" <>
    To: <>
    Sent: Monday, April 16, 2001 9:33 AM
    Subject: Re: Binocular Question
    > ----- Original Message -----
    > From: Bjoern Gimle <>
    > To: Seesat-L <>
    > Sent: Friday, April 13, 2001 8:33 AM
    > Subject: Re: Binocular Question
    > > > > You don't need your glasses with binoculars or a telescope unless
    > > > > have an astigmatism.  If you are sharing views with someone else...
    > > >
    > > > I'm very near-sighted and find that most binoculars won't come to
    > > > without my glasses.
    > > >
    > > So am I (also astigmatic). I have considered trying disposable lenses
    > > (24h), but I don't know if they are available with astigmatism yet.
    > Hi Bjoern,  and everyone on this binocular topic.  I am new to the list,
    > however, I have been following along now for a couple of years and have
    > corresponded to individuals on the list off and on for sometime now.
    > I am Retired Air Force, occupation (Flight Engineer) for the C-20
    > (Gulfstream III) and various other airframes.  I now live in Zweibruecken
    > Germany, where my hobbies include astronomy and observing Satellites
    > (specifically military sats i.e.. White Cloud, Milstar, Lacrosse and the
    > like.
    > I observe with Binoculars, Miyauchi being my favorite, using "The Sky"
    > Software and a laptop.  So,  on with the message...
    > I have an idea that you all might be interested in.  I also wear glasses
    > (used to wear I should say).  I
    > have taken an old pair of glasses (Plastic lenses) and cut out the center
    > each lens (left and right) in the shape of a circle with a dremel tool,
    > course, I have measured carefully before cutting so the finished lens will
    > be a snug fit in the particular size ocular I have chosen.  I then take
    > circle of prescription plastic and put it in the ocular right on top of
    > ocular lens.  The rubber eye cup holds the circles perfectly in place.
    > Presto!  Prescription Binoculars.  They also keep the oculars clean too.
    > few thoughts...First, center focus binos are the easiest to convert, for
    > oculars do not rotate.  Well the left one at least.  The right ocular, I
    > have set for my eyes and adjust the right lens to be vertically
    > (VERY IMPORTANT STEP).  What I mean here is that BEFORE you cut the
    > out of your glasses, be sure to mark the top and bottom as well as the
    > from the right.  I did this first with a magic marker, then after I cut
    > circles out I marked on the edge of each one a dot showing top and an L
    > an R also on the edge for left and right.  After doing this it's a quick
    > matter of putting them in the oculars orientated and your done!  My
    > binos are the 100mm Apochromatic Miyauchi's with interchangeable 20 and 37
    > power oculars.  Of course these are mounted, Simply Awesome!  However, the
    > oculars focus independently of each other and to make my prescription
    > circles fit these, I must rotate the circles to orientate the top to the
    > top, inside the oculars after focusing on infinity, and then there ok for
    > the night.  My thoughts on hand held binos...The only way I'd hold binos
    > if they were image stabilized.  If they are not, I use a tripod with a
    > made parallelogram arm with my binos attached to it.  Total freedom of
    > movement.  I can observe for hours!  Also I have made a custom tripod to
    > allow me to sit while I work...Ok, so I should get a life, anyway These
    > systems I use are very very comfortable for long hours at the oculars...
    > Russ Bessom
    > 7 19 0 E,   49 14 0 N.  250M  UTC+1.00
    > (Zweibruecken Germany)
    > -----------------------------------------------------------------
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