Nikon 25464 D300S User's Manual - Page 284

File Naming G button ➜ C shooting menu Photographs are saved using file names consisting of "DSC_" or, in the case of images that use the Adobe RGB color space, "_DSC", followed by a four-digit number and a three-letter extension (e.g., "DSC_0001.JPG"). The File naming option is used to select three letters to replace the "DSC" portion of the file name. For information on editing file names, see steps 2 and 3 of "Renaming Shooting Menu Banks" (0 254). Note that the portion of the name that can be edited is a maximum of three characters long. A Extensions The following extensions are used: ".NEF" for NEF (RAW) images, ".TIF" for TIFF (RGB) images, ".JPG" for JPEG images, ".AVI" for movies, and ".NDF" for dust off reference data. In each pair of photographs recorded at image-quality settings of NEF (RAW)+JPEG, the NEF and JPEG images have the same file names but different extensions. Long Exp. NR (Long Exposure Noise Reduction) G button ➜ C shooting menu If On is selected, photographs taken at shutter speeds slower than 8 s will be processed to reduce noise. The time required for processing is roughly equal to the current shutter speed; during processing, "l m" will blink in the shutter speed/aperture displays and pictures can not be taken (if the camera is turned off before processing is complete, the picture will be saved but noise reduction will not be performed). In continuous release mode, frame rates will slow and while photographs are being processed, the capacity of the memory U buffer will drop. 258