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  1. #11
    JBrunner's Avatar
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    Quote Originally Posted by Chuck1 View Post
    I tried to open the link on your site Jason but when I do it locks my computer up, oh well.

    This is not to tell you how to do it, but for LF beginners with rails like myself that may want to use this method: I just use the millimeter scale on my rail. When the inside to inside measurements of both standards are at 126mm apart, I know that my 210mm lens is at infinity. I simply made up a small chart with the extension factors at 1/2 inch increments forward of inifinity to about 5 inches. Did the math one time for the chart (just a few minutes). So, when the inside distance of the standards are, say,at 178mm, that's 2 inches forward of infinity, and my chart says 1.5x.
    It's a pdf, so you may need acrobat reader. It opens ok on the two computers I have here, and a test across town. Computers.....

    I'm certainly not telling anyone how to do it.:o (hehe we said "do it" hehe) You should do whatever works best for you. I haven't been able to try what you do, because all of my cameras are so old, they don't have any numbers on the rails. I could tape some on, but I haven't the heart. (or head)
    Last edited by JBrunner; 12-27-2007 at 11:54 PM. Click to view previous post history.

  2. #12

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    Thanks Jason.
    Brian McDowell

  3. #13
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    J Brunner thanks yours is easyer to use than the Quick Disc by Phillip Salzgeber : Thanks
    Lauren MacIntosh
    When one's life Ends, then one becomes Life's history !

  4. #14
    Thomas Bertilsson's Avatar
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    Jason, you are a good man. Saves me a lot of headache.
    - Thomas
    "Often moments come looking for us". - Robert Frank

    "Make good art!" - Neil Gaiman

    "...the heart and mind are the true lens of the camera". - Yousuf Karsh

  5. #15
    RobertP's Avatar
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    I've had a quick disc in my wallet for years. It has been in there so long that it has made a 3" diameter circular impression into the leather. A few weeks ago I was checking out at the store and laid my wallet on the counter. The lady teller took one look at the wallet and looked at me and said " I'm impressed" After getting over the shock I started trying to explain but she was laughing so hard I just gave up.Time to buy a new wallet and go with the square disc.

  6. #16
    JBrunner's Avatar
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    Quote Originally Posted by RobertP View Post
    I've had a quick disc in my wallet for years. It has been in there so long that it has made a 3" diameter circular impression into the leather. A few weeks ago I was checking out at the store and laid my wallet on the counter. The lady teller took one look at the wallet and looked at me and said " I'm impressed" After getting over the shock I started trying to explain but she was laughing so hard I just gave up.Time to buy a new wallet and go with the square disc.
    That will be even more funny! She may never recover.

  7. #17

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    I saw a studio portraiture video wherein the photographer was using a sinar for some macro shots. He had a little doohickey from calumet that you put in the scene, then measure the size of on the ground glass. The size on the GG gives you a bellows factor from a lookup table.
    The universe is a haunted house. -Coil
    .

  8. #18
    JBrunner's Avatar
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    Quote Originally Posted by walter23 View Post
    I saw a studio portraiture video wherein the photographer was using a sinar for some macro shots. He had a little doohickey from calumet that you put in the scene, then measure the size of on the ground glass. The size on the GG gives you a bellows factor from a lookup table.
    That sounds familiar. I think I've seen something like that somewhere.

  9. #19
    Ole
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    The best of those little doohickeys is the Salzgeber QuickDisc. Go to http://www.salzgeber.at/disc/index.html - then download it for free and print it out.
    -- Ole Tjugen, Luddite Elitist
    Norway

  10. #20
    RobertP's Avatar
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    Quote Originally Posted by Ole View Post
    The best of those little doohickeys is the Salzgeber QuickDisc. Go to http://www.salzgeber.at/disc/index.html - then download it for free and print it out.
    Just don't laminate it to heavy card stock and carry it in your wallet.

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