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    Re: Navigation instruments from Paris, Maskelyne
    From: Jan Kalivoda
    Date: 2004 Jul 20, 08:54 GMT

    Hello, Joel,
    thank you for your remark. I am fully aware of your troubles, but working
    only from internet cafes in Paris, I cannot help you and me now. I will be
    able to redress and republish my pictures only in August from Prague.
    Meanwhile, can you give me advice about software and modes that shall I use?
    I tried higher compression ratios for these JPG's, but the quality suffered.
    And as these pictures are not the best even uncompressed (it was a bit
    difficult to take them in an unsuitable room, deep behind the glass), I
    wonder, how to diminish them and not to degrade them too much.
    Thanks, Jan Kalivoda
    Joel Jacobs writes:
    > Hello Jan,
    > Thank you for the invitation. But, the file sizes of you pictures average
    > about 2 Megs. For some of us they take too long to load even with broadband.
    > Simple photo editing software would allow you to get the file size down to
    > 20 KB and still have good pictures.
    > BTW, The first picture is still working on opening.
    > I very interested in what you published, but haven't more time,
    > Joel Jacobs
    > ----- Original Message -----
    > From: "Jan Kalivoda" 
    > To: 
    > Sent: Monday, July 19, 2004 5:39 PM
    > Subject: Navigation instruments from Paris, Maskelyne
    >> Hello,
    >> if anybody wants, login to "http://www.xdrive.com" under the login
    >> "navigation@seznam.cz" (XDRIVE allows only valid e-mail addresses as
    > logins,
    >> as you probably know), password "celnav".
    >> You have 60 MB photos of some historical navigation instruments kept in
    > the
    >> Marine Museum in Paris (directory "Musee de la Marine") there. I tried to
    >> create the logical sequence of them from the nocturnal and the Jacob staff
    >> to repeating lunar circles.
    >> Of course, I am not a professional photographer and I didn't have the
    >> instruments available "au plain air".
    >> At the end of this week, I shall obtain some copies of Maskelyne's less
    >> known works printed in the 18th century. It would be interesting to chat
    >> about them a bit in the list.
    >> Jan Kalivoda

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