dr5, or dr5 Chrome, is a reversal black-and-white process, via which most kinds of black-and-white negative films produce transparencies (slides). It was developed by David Wood, CEO and proprietor of dr5 Chrome Lab, a photographer turned photographic chemist. The dr5 process is a chemical reversal process, rather than the standard light-based reversal for B&W transparency (black and white slide]. David Wood recently contributed to the acclaimed Darkroom Cookbook.
The "dr5 process", the 5th incarnation of the process and was Derived at by experimentation by David Wood from 1989 - 1991. Though reversal film processing is commonly known throughout photographic history, the dr5 process is proprietary by trade secret. Done privately until 1998, the process teamed shortly with A&I labs in Los Angeles CA. The dr5 process won best new product in 1999 at the '99 Photo Expo-Plus Expo Review In 2001, dr5 opened an independent lab at 38th and 8th Ave. in New York City. The lab used a processor made for dr5 specifications by Tecnolab in Italy. dr5-film Lab relocated to Denver in 2005.
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- "Contributors chapter - Darkroom Cookbook" (PDF).
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- "Lab Profile: dr5: B&W Chromes Reborn With Proprietary dr5 Process". Rangefinder. 2005.
- "Photo Expo-Plus".
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- "Dr 5 Chrome". Retrieved 1 November 2010.
- "Tecnolab's website".
- "dr5 lab website".
- "dr5 Chrome relocates to Denver". June 30, 2005. Retrieved 1 November 2010.
- Company website Black and White slide - transparency process
- Bedell, Steve. A Traditional Photographer Merges Film and Digital Techniques: The Art and Craft of Richard Lohmann. Shutterbug, February 2006. Profile of photographer Richard Lohmann, Photographic Professor at San Mateo, CA using dr5.
- Mabry, Nicole. dr5: A Fresh Spin on Cross Processing. JPG, 13 July 2007.
- Schaub, George. dr5 Labs: Renewing The Black And White Lease. Shutterbug, February 2005.
- Van Os, Joe. 'Doctor' Wood's Amazing .dr5 Black and White Transparencies. Joseph Van Os Photo Safaris, 2008.
- dr5 / negative development grain comparisons
- Leicaguy.com dr5 revisited
- Darkroom Cookbook - dr5 chrome reference Amazon.com
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