ContinueWe use cookies to give you the best experience on our website. You can browse the site with Carestream disabled cookies; However, your visit will be significantly improved if cookies will be active. If you continue without changing your settings, you agree to receive all cookies. However, you can change the setting of cookies at any time.

If you want to learn more (this is the link to our privacy policy, which has detailed information on how we use cookies and how to change their settings).

What is Static and How to Reduce It

Static appearing on your films is caused by low relative humidity. This causes a buildup and discharge of static electricity when a film is moved across an object such as a screen/cassette, loading bench, or other film. It appears as a plus density (black) defect such as tree branch/lightning patterns and/or a series of black spots. See below for an example.

What is Static and How to Reduce it  

 

You can help prevent static with the following precautions:

  1. Ground the film loading bench
  2. Install a rubberized mat on the darkroom floor.
  3. Install a non ionizing humidifier. Maintain humidity of 30-50%.
  4. Handle film carefully when loading and unloading or removing from the film box.
  5. Clean the screens with anti-static cleaner and a lint free cloth frequently. Allow the screens to dry thoroughly before use.
  6. Wear rubber soled shoes and clothing that does not create static electricity.