Q.  What are KODAK Wratten Filters?
A.  Optical filters consist mainly of colorants dissolved in gelatin. Most Kodak filters are made by dissolving suitable organic dyes in liquid gelatin and coating the proper amount of the solution onto prepared glass. After the coating is dry, the gelatin film is stripped from the support material. Each gelatin filter is standardized for spectral transmittance and total transmittance by special instruments which apply an optical form of limit gauge to these characteristics.

     The most complete line of Kodak filters for photographic uses is available in the form of gelatin films. Prepared in the manner described above, gelatin filters have a thickness of 0.1 mm plus or minus 0.01 mm. Because of their uniform thickness, gelatin filters have excellent optical quality and are suitable for precise work in which little effect on definition and no increase in length of the optical path can be tolerated.
Q.  Where can I purchase KODAK Professional products?
A.   In January of 2000, The Tiffen Company became the worldwide manufacturer and distributor of selected KODAK Professional accessories. These accessories are divided into the following categories: KODAK Filters, KODAK Quality Control and Calibration Devices, and KODAK Darkroom and Finishing Supplies.  These products can be purchased through your Tiffen Dealer. Please call Tiffen to locate a Dealer in your area.

Q.  What KODAK Wratten filter sizes are available?
A.   Most Wratten filters are available in: 75mm- 3” Square, 100mm- 4” Square, 150mm- 6” Square,         350x450mm- 14”x18” (Special Order Item)

Q.  I don’t see the filter I need on your website. Can Tiffen customize a filter for me?
A.  This depends on your application. Please see your Tiffen dealer to discuss your application needs and how best to serve you. Or call 1-800-645-2522 to speak to a Customer Service Representative or email your request to techsupport@tiffen.com.
Q.  Where can I view transmission curves for KODAK Wratten filters?      
A.   Transmission curves are available on the website link below. These curves were scanned from the Kodak publication B-3, KODAK Photographic Filters Handbook. www.geocities.com/thombell
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