World Library  
Flag as Inappropriate
Email this Article

Harris shutter

Article Id: WHEBN0005491633
Reproduction Date:

Title: Harris shutter  
Author: World Heritage Encyclopedia
Language: English
Subject: Photographic film, Outline of photography, Photography/Topics, Photography/Categories, F-number
Collection: Photographic Techniques
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Harris shutter

The Harris shutter is a strip device with three color filters, invented by Robert S. "Bob" Harris of Kodak, for making color photographs with the different primary color layers exposed in separate time intervals in succession.[1][2] The term Harris shutter is also applied to the technique or effect.

The effect is produced by re-exposing the same frame of film through red, green and blue filters in turn, while keeping the camera steady. This will generate a rainbow of colour around any object that moves within the frame. Some good candidates for subjects include waterfalls (pictured, left), clouds blowing over a landscape or people walking across a busy town square.

Traditionally, the technique is either achieved using a camera that allows in-register multiple exposures, and changing filters on the front of the lens. Another alternative was to make a drop through filter that consisted of the three coloured gels and two opaque sections that is literally dropped through a filter holder during exposure.

With the advent of digital photography, the process has become a lot simpler – the photographer can simply take three colour photographs on location, and then use software to take the Red channel from one exposure, combine with the blue and green channels from the other two photos to good effect – this even allows for correction of movement if the camera is inadvertently moved between exposures.[3] Another advantage of digital processing is that different results can be obtained by reassigning the RGB channel of each layer.

References

  1. ^ Petersen's photographic magazine 10. Petersen Pub. Co. 1981. 
  2. ^  
  3. ^ Tim Grey (2008). Take Your Best Shot: Tim Grey Tackles Your Digital Darkroom Questions. O'Reilly. pp. 155–157.  

External links

  • Shutterbug
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.