Cytat:
Auto-Aperture flash mode
The SB-900 controls the flash output level by measuring the flash illumination reflected back from the subject using the sensor for Non-TTL auto flash and combining this with information from the camera, such as the ISO sensitivity and the aperture setting.
Non-TTL Auto flash mode
The SB-900 controls the flash output level by measuring the flash illumination
reflected back from the subject using the sensor for Non-TTL auto flash.
A i chińska lampa za 50 czy 100 zł z funsports po ustawieniu zworek działa zgodnie z jakimś tam automatycznym programem i poprawnie naświetla (choć zdecydowanie ogranicza użytkownika).