Nikon D3100 D3100 User's Manual - Page 80

Image Quality and Size Together, image quality and size determine how much space each photograph occupies on the memory card. Larger, higher quality images can be printed at larger sizes but also require more memory, meaning that fewer such images can be stored on the memory card (0 187). Image Quality Choose a file format and compression ratio (image quality). Option File type Description NEF (RAW) + NEF/ Two images are recorded: one NEF (RAW) image and one fine-quality JPEG JPEG fine JPEG image. Raw 12-bit data from the image sensor are saved directly to the memory NEF (RAW) NEF card. Settings such as white balance and contrast can be adjusted on a computer after shooting. JPEG fine Record JPEG images at a compression ratio of roughly 1 : 4 (fine quality). JPEG normal JPEG Record JPEG images at a compression ratio of roughly 1 : 8 (normal quality). JPEG basic Record JPEG images at a compression ratio of roughly 1 : 16 (basic quality). 1 Place the cursor in the information display. z If shooting information is not displayed in the monitor, press the P button. Press the P button again to place the cursor in the information display. Information display P button 2 Display image quality options. Highlight the current image quality in the information display and press J. 64