Jump to content

Search the Community

Showing results for tags 'negative film'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Affinity Support
    • News and Information
    • Affinity Support & Questions
    • Feature Requests & Suggestions
  • Learn and Share
    • Tutorials (Serif and Customer Created Tutorials)
    • Share your work
    • Resources
  • Bug Reporting
    • Report a Bug in Affinity Designer
    • Report a Bug in Affinity Photo
    • Report a Bug in Affinity Publisher
    • (Pre 1.7) Affinity Range Bugs Forums
  • Beta Software Forums
    • Affinity Designer Beta Forums
    • Affinity Photo Beta Forums
    • Affinity Publisher Beta Forums

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


AIM


MSN


Website URL


ICQ


Yahoo


Jabber


Skype


Location


Interests

Found 1 result

  1. Hi guys, I do this in Photoshop to normalize the R, G, and B curves for the negative film (yes, I scan 35mm film) : - Create a new 'Curves' layer. - Click the little arrow at the top right of the Curves properties window, and select "Auto Options...". - Click "Enhance Per Channel Contrast" and "Snap Neutral Midtones", and set the shadow and highlight clipping to "0.01". - Click "Save as Defaults" and then "ok" out of the Auto Options window, and now click the "Auto" button. What I've just done is to normalize the R, G, and B curves for the negative film. A little background: essentially, negative film has characteristic curves for R, G, and B light. But these are not coincident with each other. If you were to take a photograph of a neutral grey patch and look at the histogram of the negative, you'd find that the blue channel would have the highest intensity, followed by green, and then red. What you need is, for a neutral grey patch, to ensure that R = G = B (that, indeed, is the RGB *definition* of "grey"). So in this curves layer, you're correcting for this R, G, B curve offset by forcing the histogram for each colour to use the entire histogram range (that is, you are enhancing the per channel contrast...as per the Auto Option box you checked above). I need to do the same using the Affinity Photo that I have just bought it :) Any way to do this ? Thanks
×

Important Information

These are the Terms of Use you will be asked to agree to if you join the forum. | Privacy Policy | Guidelines | We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.