Inverso

May 9, 2020

1. The default rounding mode is to AUTO. In AUTO mode, the calculated exposure time is biased to underexpose to protect the highlights of positive films or to overexpose to protect the shadows of negative film. This only occurs when the calculated time is < 1 s and the shutter setting is not available (e.g., 1/32 becomes 1/30 or 1/60).
2. In the expert report the results are rounded to 2 decimal places and tells you if the result may be biased, because a particular rounding mode is active.