Paper profile values are displayed in a somewhat user-opaque unit known as the "Print Exposure Value" (or PEV). While quite sufficient for entering and copying numbers, this isn't so easy for common adjustment cases.
A common adjustment case might be something like "I want to make this 1/4 stop darker."
There should be some easy way to manipulate these numbers in stop-units.
Fundamentally, each "stop" corresponds to approximately 30 "PEV units," but the user shouldn't have to do the math on that. (especially for fractional stops)
Paper profile values are displayed in a somewhat user-opaque unit known as the "Print Exposure Value" (or PEV). While quite sufficient for entering and copying numbers, this isn't so easy for common adjustment cases.
A common adjustment case might be something like "I want to make this 1/4 stop darker."
There should be some easy way to manipulate these numbers in stop-units. Fundamentally, each "stop" corresponds to approximately 30 "PEV units," but the user shouldn't have to do the math on that. (especially for fractional stops)