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Thread: Portra 160 x 400 (4X5) mixed up (ay caramba)

  1. #1

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    May 2018
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    Portra 160 x 400 (4X5) mixed up (ay caramba)

    Have any of you had this problem:

    I have some loaded disks, some with 160, and some with 400 portra.
    But I lost my paper which states what disks are loaded with 160 and which with 400.

    I am a portrait photographer, but how can handle this the best way, to have the best results even?

    I was thinking to meter each shot somewhere between 160 and 400 ISO, so then is I would have 160 a bit overexposed, and 400 a bit underexposed.

    Or is there another way that I am not seeing?

  2. #2
    cjbecker's Avatar
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    Apr 2011
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    Re: Portra 160 x 400 (4X5) mixed up (ay caramba)

    I have never shot portra in 4x5 but I have shot a lot of it in medium format. Portra 400 can easily handle being shot at 160. Portra 400 is some amazing film.

  3. #3

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    Jun 2014
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    Re: Portra 160 x 400 (4X5) mixed up (ay caramba)

    You can tell them apart by their notch codes. Just open the film holders in the dark and feel for the notches. The datasheets of both films include a little picture of the notches. No need to guess or compromise.

  4. #4

    Re: Portra 160 x 400 (4X5) mixed up (ay caramba)

    Just shoot them all at 160. They'll be totally fine!

  5. #5
    Corran's Avatar
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    Re: Portra 160 x 400 (4X5) mixed up (ay caramba)

    Quote Originally Posted by neildw View Post
    I was thinking to meter each shot somewhere between 160 and 400 ISO, so then is I would have 160 a bit overexposed, and 400 a bit underexposed.
    First, review exposure and ISO.

    Second, look at the notch codes on the box and in the dark match them up to the film. Done.
    Bryan | Blog | YouTube | Instagram
    All comments and thoughtful critique welcome

  6. #6

    Join Date
    May 2018
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    Re: Portra 160 x 400 (4X5) mixed up (ay caramba)

    I knew that those notches were there to tell differences, but did not know it was also different per ISO. Cool

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