Nikon D500 Users Manual - English for customers in Asia Oceania the Middle Eas - Page 153

A Minimum Shutter Speed Auto shutter-speed selection can be fine-tuned by highlighting Auto and pressing 2: for example, values faster than those usually selected automatically can be used with telephoto lenses to reduce blur. Note, however, that Auto functions only with CPU lenses; if a non-CPU lens is used without lens data, minimum shutter speed is fixed at 1/30 s. Shutter speeds may drop below the selected minimum if optimum exposure can not be achieved at the ISO sensitivity chosen for Maximum sensitivity. A Turning Auto ISO Sensitivity Control On or Off You can turn auto ISO sensitivity control on or off by pressing the S (Q) button and rotating the sub-command dial. The control panel and viewfinder display ISOAUTO icons when auto ISO sensitivity control is on and ISO when it is off. A Auto ISO Sensitivity Control When a flash is used, minimum shutter speed will be set to the value selected for Minimum shutter speed unless this value is faster than Custom Setting e1 (Flash sync speed, 0 299) or slower than Custom Setting e2 (Flash shutter speed, 0 300), in which case the value selected for Custom Setting e2 will be used instead. Note that ISO sensitivity may be raised automatically when auto ISO sensitivity control is used in combination with slow sync flash modes (available with optional flash units; 0 201), possibly preventing the camera from selecting slow shutter speeds. A See Also For information on choosing the reference used to set exposure when a flash is used with auto ISO sensitivity control, see Custom Setting e4 (Auto M ISO sensitivity control, 0 300). 127