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  1. #11

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    Jun 2009
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    luxikon, Is this legacy APX-100 or is it Rollei Retro 100 film you are using. I noticed that you measured a density of 0.03 on your first roll. That's real low; hell that's crystal clear. I was just wondering in case I ever needed a 35mm film stock with that clear of a base. I'll bet it would do well as a reversal film; for example as a film for for the dr5 process.

    Denis K

  2. #12
    DutchShooter's Avatar
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    I measured 0.12 for rollei retro 100 for unexposed base....

  3. #13
    luxikon's Avatar
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    @ Denis

    It's legacy APX 100. I zeroed the densitometer after measuring base+fog. Then I measured 0.03 for ZI.

  4. #14
    Anscojohn's Avatar
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    Quote Originally Posted by luxikon View Post
    @ Denis

    It's legacy APX 100. I zeroed the densitometer after measuring base+fog. Then I measured 0.03 for ZI.
    **********
    You can reasonably expect that your exposure meter is calibrated to measure an approximate 18% reflectance. Are you taking your exposure reading off such a surface?
    John, Mount Vernon, Virginia USA

  5. #15
    luxikon's Avatar
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    No, until now I didn't. I only used any uniform (near) white background because I thought the meter would give me a standardized reading of 18% gray. But I'll take a gray card for my next tests if that helps.

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