Automated f-stops

FirstName LastName

• July 03, 2024 11:51

Hi all,

Im new to scripting for Capture One and I was wondering, how would one go about creating a scripted solution for the following workflow?

We are shooting HDR images with different f-stops and would like to automate the capturing process with something like this:

Shoot first stop (ISO 100 and f/16)

then going up one stop by ISO (200, 400, 800 etc. until 51200)

Then at the last stop we want to switch over to the aperture with the last stops (f/8 and f/4)

Does anyone have a suggestion on how to automate this?

Thanks in advance and cheers!

Rutgher

 

 

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  Emory Dunn

  • July 03, 2024 16:06

  That's quite the bracket!

  The easiest option is probably to use the increment command, which will change the camera settings by the exposure increments set in the camera (most likely 1/3 or 1/2 stops). You can call the command three (or two) times to get a full stop. 

  You can do something like this, which will iterate through all ISOs until the camera returns an error when it can't increment further. ISO Speed may need to be changed to something else, not all cameras have the same name for ISO. Then you can do something similar for the aperture. 

   

  use application "Capture One"

  set ISO of camera of current document to 100

  try

      repeat while true

          increment attribute named "ISO Speed" of camera of current document

          increment attribute named "ISO Speed" of camera of current document

          capture

          delay 1

      end repeat

  end try

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  FirstName LastName

  • July 11, 2024 14:06

  Hi Emory,

  Thanks for your quick setup, I've managed to get our ranges working this way!

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