Hi, I'm using Zero2000 pinhole camera that have a F/138 aperture size hole. I meter with Sekonic L-508 hand held meter. My meter can read up to F/128. What is the different between F/138 to F/128 in terms of exposure compensation? If I meter according to F/128 how much exposure do I need to add for F/138? Thank you, Nir.
Considering using a pinhole camera without an automatic shutter is a hit-and-miss in terms of accurate exposure anyway, I wouldn't bother at all about an F138 versus F128 F-stop difference... I don't with my Zero Image pinhole, it is all part of the fun and charm of using a pinhole that you don't always get repeatable or fully accurate results!
