- (in current code) only positive ETTR correction is performed (if data already hits the right histogram side -> no correction needed), so manual adjusted negative ETTR correction is skipped.
- there is no such a limit in correction display
Note: displayed exposure correction value is adjusted by 'Adobe hidden exposure correction' (or BLE), so displayed Auto-ETTR correction value may be negative if 'Adobe hidden' is positive.
We'll consider what to do:
- either automatic correction plus negative adjustment can result in negative correction
- or should we leave 0 as the minimum limit even with adjustment
The first option is easier to explain to users. The second option is more reasonable (why do we need negative correction if the original data is already at the edge of the histogram? It won't add detail to the highlights).
Correction about #2:
Correction about #2:
- (in current code) only positive ETTR correction is performed (if data already hits the right histogram side -> no correction needed), so manual adjusted negative ETTR correction is skipped.
- there is no such a limit in correction display
Note: displayed exposure correction value is adjusted by 'Adobe hidden exposure correction' (or BLE), so displayed Auto-ETTR correction value may be negative if 'Adobe hidden' is positive.
We'll consider what to do:
- either automatic correction plus negative adjustment can result in negative correction
- or should we leave 0 as the minimum limit even with adjustment
The first option is easier to explain to users. The second option is more reasonable (why do we need negative correction if the original data is already at the edge of the histogram? It won't add detail to the highlights).
--
Alex Tutubalin/FastRawViewer team