Nikon D500 100th Anniversary Edition User Manual - Page 223

4 Adjust shutter speed and aperture. 5 Take pictures. D Use Only Nikon Flash Accessories Use only Nikon flash units. Negative voltages or voltages over 250 V applied to the accessory shoe could not only prevent normal operation, but damage the sync circuitry of the camera or flash. Before using a Nikon flash unit not listed in this section, contact a Nikonauthorized service representative for more information. A Shutter Speed Shutter speed can be set as follows when an optional flash unit is used: Mode Shutter speed P, A Set automatically by camera (1/250 s-1/60 s) * S Value selected by user (1/250 s-30 s) M Value selected by user (1/250 s-30 s, Bulb (A), Time (%)) * Shutter speed may be set as slow as 30 s if slow sync, slow rear-curtain sync, or slow sync with red-eye reduction is selected for flash mode. A The Sync Terminal A sync cable can be connected to the sync terminal as required. Do not connect another flash unit via a sync cable when performing rear-curtain sync flash photography with a flash unit mounted on the camera accessory shoe. A Unified Flash Control Unified flash control allows the camera and flash unit to share settings. If a flash unit that supports unified flash control is mounted on the camera, changes to flash settings made with either the camera or flash unit are reflected on both devices, as are changes made using optional Camera Control Pro 2 software. 197