Nikon D750 Product Manual - Page 61

A No Memory Card If no memory card is inserted, the control panel and viewfinder will show S. If the camera is turned off with a charged battery and no memory card inserted, S will be displayed in the control panel. A The Write Protect Switch SD memory cards are equipped 16GB with a write protect switch to prevent accidental loss of data. When this switch is in the "lock" position, the memory card can not Write-protect switch be formatted and photos can not be deleted or recorded (a warning will be displayed in the monitor if you attempt to release the shutter). To unlock the memory card, slide the switch to the "write" position. ❚❚ Detaching the Lens Be sure the camera is off when removing or exchanging lenses. To remove the lens, press and hold the lens release button (q) while turning M M/A the lens clockwise (w). After removing OFF ON the lens, replace the lens caps and camera body cap. D CPU Lenses with Aperture Rings In the case of CPU lenses equipped with an aperture ring (0 429), lock aperture at the minimum setting (highest f-number). 33