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Thread: How do I make my Graflex Crown Graphic's ground glass brighter?

  1. #1

    Question How do I make my Graflex Crown Graphic's ground glass brighter?

    Have any of you purchased something for this and verified that it makes a noticeable difference? My glass is too dim. I use a F5.6 lens.

  2. #2
    Tin Can's Avatar
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    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    Wash it inside and out

    Maybe regrind by hand, takes no time

    I have handmade many GG up to 11X14

    I like mine best

    Do some research on this forum as it is spelled out many times
    Tin Can

  3. #3
    Tin Can's Avatar
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    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    A 70 year old camera often has a filthy GG, just from dust and pollution

    I wash mine in Dawn scrubbing both sides and dry in dish rack

    Be gentle IF it has a grid, some grids are pencil
    Tin Can

  4. #4

    Exclamation Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    Quote Originally Posted by Tin Can View Post


    A 70 year old camera often has a filthy GG, just from dust and pollution

    I wash mine in Dawn scrubbing both sides and dry in dish rack

    Be gentle IF it has a grid, some grids are pencil

    Wash it inside and out

    Maybe regrind by hand, takes no time
    Thank you! I will try this out. I don't have a grid but I could use one so I might try that too.

  5. #5

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    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    Are you sure your camera has the proper "ektalite" Fresnel, installed the right way? Many times they are missing. Even so, the gg is a bit on the dark side.

    I did have one of my backs converted to a Maxwell screen. It was expensive at the time, and required also sending the back to Maxwell's recommend machinist to make some adjustments to get it to index properly. It was expensive at the time, but a huge improvement.

    By the way, Bill Maxwell is winding things down, so if you want one you better act now.

  6. #6

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    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    The later Pacemaker GG's have a plastic fresnel lens between lens/GG, so make sure you carefully note the orientation of grooved side of fresnel and proper stacking order and reinstall exactly, or a focusing error will come to life...

    Don't scrub the plastic fresnel with anything rougher than your finger or soft cloth + dishwashing detergent...

    If lines wash off, you can make new lines with a sharp pencil and a tri-square...

    Good is clean...

    Steve K

  7. #7
    Tin Can's Avatar
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    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    Your next task is making sure the GG distance and your film holders with film agree

    These 2 websites are authorities

    https://graflex.org/

    https://lommen9.home.xs4all.nl/Nieuw...%20Cameras.htm

    A depth gauge and very careful usage MAY help, I have a lot of tools

    https://www.amazon.com/iGaging-Elect...s%2C96&sr=8-11
    Tin Can

  8. #8
    Drew Bedo's Avatar
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    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    Are ther not any 'bright screen" new GG that would just drop in?

    I'
    d wash it first and see.
    Drew Bedo
    www.quietlightphoto.com
    http://www.artsyhome.com/author/drew-bedo




    There are only three types of mounting flanges; too big, too small and wrong thread!

  9. #9

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    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    The unusual lines-facing backward nature of the fresnel is what makes machining necessary when converting to other screens. At least that is my understanding. I don't think shimming cuts it. Why so many used cameras (particular the baby ones) have the fresnel gone I cannot explain. They don't break. Lots of people who stop down probably don't know what they are missing.

  10. #10

    Re: How do I make my Graflex Crown Graphic's ground glass brighter?

    Quote Originally Posted by Kevin Crisp View Post
    Are you sure your camera has the proper "ektalite" Fresnel, installed the right way? Many times they are missing. Even so, the gg is a bit on the dark side.

    I did have one of my backs converted to a Maxwell screen. It was expensive at the time, and required also sending the back to Maxwell's recommend machinist to make some adjustments to get it to index properly. It was expensive at the time, but a huge improvement.

    By the way, Bill Maxwell is winding things down, so if you want one you better act now.
    I am not sure if it has a fresnel. I'll look into that this weekend. Thank you for the suggestion.

    How much did that Maxwell conversion cost you? I don't see myself using this camera forever but if the price is affordable I would consider it. The dim glass makes working quickly in dim light a task.

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