By:

Matthew Bognar

Exposure Assistant

This application approximates the length of exposure for various B&W films (and some color films) in low light situations. In low light, extra exposure is needed due to reciprocity failure (also known as the Schwarzschild effect). As such, your camera's meter is not accurate in low light. This application approximates the proper exposure time (based upon manufacturers datasheets). A timer is now included in the application.The application warns when the user enters an exposure longer than described in manufacturer's datasheets. Although the exposure in these instances is crudely approximated by mathematical extrapolation, it is crucial that users conduct their own exposure tests in these very long exposure situations. Current supported films:Adox CHS 25/50/100Adox CHS 100 IIAdox CMS 20 IIAdox Silvermax 100Agfa APX 100/400Bergger Pancro 400Fomapan 100Fomapan 200Fomapan 400Fuji Acros 100Fuji Provia 100FFuji Velvia 50Fuji Velvia 100Ilford Delta 100Ilford Delta 400Ilford Delta 3200Ilford FP4 PlusIlford HP5 PlusIlford PanF PlusIlford XP2 SuperKodak Ektar 100Kodak Portra 160/400Kodak TMAX 100Kodak TMAX 400Kodak Tri-X 400Rollei RPX 25Rollei RPX 100Rollei RPX 400

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