Exposure Assistant
Approximate exposure for various B&W films (and some color films) in low light.
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 cameras 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 manufacturers 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 100Fuji Pro 160 NSFuji Pro 400HIlford Delta 100Ilford Delta 400Ilford Delta 3200Ilford FP4 Plus 125Ilford HP5 Plus 400Ilford Ortho Plus 80Ilford PanF Plus 50Ilford XP2 Super 400Kentmere Pan 100Kentmere Pan 400Kodak Ektar 100Kodak Portra 160/400Kodak TMAX 100Kodak TMAX 400Kodak Tri-X 320/400Rollei RPX 25Rollei RPX 100Rollei RPX 400Added Rollei IR 400. Small bug fixes and tweaks.
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 cameras 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 manufacturers 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 100Fuji Pro 160 NSFuji Pro 400HIlford Delta 100Ilford Delta 400Ilford Delta 3200Ilford FP4 Plus 125Ilford HP5 Plus 400Ilford Ortho Plus 80Ilford PanF Plus 50Ilford XP2 Super 400Kentmere Pan 100Kentmere Pan 400Kodak Ektar 100Kodak Portra 160/400Kodak TMAX 100Kodak TMAX 400Kodak Tri-X 320/400Rollei RPX 25Rollei RPX 100Rollei RPX 400Added Rollei IR 400. Small bug fixes and tweaks.
Read trusted reviews from application customers
Easy to use !!!
Fab for pinhole. I've always estimated my pinhole shots based on experience...which can be hit or miss. I've ended up with some shots -- that I would have way underestimated times for -- that turned out perfectly thanks to this app (20 minutes instead of my estimate of "about 5-ish..."). Thank you for creating this!
A fantastic app - thank you! Would be great if Lomography Colour Negative 800 was added if at all possible. Many thanks!
Good app but missing the data for Portra 800 Edit: updated review to 5 stars
I appreciate having this app at my disposal. Very helpful.
Awesome app. Whish it would calculate based on stopping the film up or down. Are there any plans to add ISO values?
Indespensible app for film photography. I've found it spot on accurate with every stock I've tested.
Great app! Simple and effective. Please add Tri-X 320. Thanks !
Great, to-the-point interface. I love that it has timer as well. I have yet to try how accurate the estimated values are, but this will surely help a lot.
Great app. Please update more film profiles.........thxs.