AUTOMATIC BALANCED FILL-FLASH WITH TIL MULTI SENSOR-3D MULTI - SENSOR BALANCED FILL-FLASH AND MULTI- SENSOR BALANCED FILL-FLASH
3D Multi-Sensor Balanced Fill-Flash is possible only with the combination of the N90, aD-type AF Nikkor lens and the Nikon SB-25 AF Speedlight. In this flash mode, just after you depress the shutter release button and before the shutter is activated, the SB-25 will fire a series of scarcely visible pre- flashes (Monitor Pre-flashes) that are detected by the N90's TIL Multi Sensor, then analyzed for brightness and contrast. Additionally, Distance Information from the D-type AF Nikkor lens in use, along with other exposure control information, is integrated, thus automatically compensating flash output level so that flash output and ambient light are balanced. The Monitor Pre-flashes enable 3D Multi-Sensor Balanced Fill-Flash to ensure correct exposure even in difficult situations, including scenes with a very reflective object such as a mirror or a white wall, and scenes with a very dark backgrounds.
3D Multi-Sensor Fill-Flash is performed with all the meters-Matrix, Center-Weighted and Spot.
When the N90 camera and SB-25 are used with a non-D-type AF Nikkor lens, Multi-Sensor Balanced Fill-Flash, which offers the same flash output control system but without Distance Information, is performed .
Multi-Sensor Balanced Fill-Flash can also be performed with the SB-24 and other dedicated Speedlights (shown on page 113) that do not have the Monitor Pre-flash feature.
