Larry Huppert
3-Dec-1999, 00:02
I've recently had my shutters tested, and found the results very useful in terms of setting more accurate exposures. It occurred to me that testing the shutter is only one part of the equation. The other part is to know how accurate your aperture settings are as well.
Does anyone know of a relatively simple methodology for testing apertures? Expo sing a bunch of transparency film would certainly be one way, but I was looking for something where you might be able to use an incident light meter. I imagine an "absolute" determination of aperture might be near impossible to determine, but at least knowing the relative relationships between different setting on a s ingle lens, and between different lenses would be useful.
Does anyone know of a relatively simple methodology for testing apertures? Expo sing a bunch of transparency film would certainly be one way, but I was looking for something where you might be able to use an incident light meter. I imagine an "absolute" determination of aperture might be near impossible to determine, but at least knowing the relative relationships between different setting on a s ingle lens, and between different lenses would be useful.