fr:userguide
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fr:userguide [2012/08/29 15:41] – [Bulb/Focus Ramping] oxypi | fr:userguide [2012/08/29 22:02] – [Bulb/Focus Ramping] oxypi | ||
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Notes techniques : | Notes techniques : | ||
- | * Exposure is metered using a condition | + | * L' |
- | * Exposure for every shot is computed from previous shots, using a feedback | + | * L' |
- | * ISO is chosen using the 180 degree rule, so the resulting shutter speed stays between 90 and 270 degrees | + | * La sensibilité |
- | * Only full-stop | + | * Seuls les ISOs exacts |
- | * Shutter speed can be adjusted with a resolution of 10ms. | + | * La vitesse de déclenchement peut être ajustée avec une résolution de 10ms. |
- | * Frames with fast shutter speeds | + | * Les images avec une vitesse de déclenchement élevée |
- | * It can go from 1/8000s @ ISO 100 (daylight) to several | + | * Cel peut aller de 1/8000 s à ISO 100 (lumière du jour) jusqu' |
- | * Exposure | + | * algorithm is a feedback controller designed with pole placement - the closed loop response will have two real poles placed at the smoothing factor value. Smoothing factor is computed in such a way that, when scene ramping speed matches the speed selected in menu, ramp is followed at exactly 1 EV behind it. |
- | * If the lighting changes suddenly a few stops between two shots (for example, you change the ND filters or the aperture), the algorithm should recover completely after 2 or 3 shots. A sudden exposure change is considered when the exposure difference is greater than 2 stops. | + | * Si la lumière change soudainement de plusieurs entre deux prises |
Logging: | Logging: |
fr/userguide.txt · Last modified: 2012/08/31 01:22 by oxypi