Noise Reduction for Long Exposures
At longer shutter speeds the camera will automatically take a second exposure with the shutter closed in order to measure and reduce the noise (grainy look) in the image. In these cases, the exposure will seem to take twice as long as expected. For example, in a 1-second exposure, the Image Display will stay dark for 2 seconds until the noise reduction frame is exposed. This means that at longer shutter speeds, you may not be able to take quite as many shots back-to- back, but it ensures your images will be free of noise.
Using Panorama Mode
Panorama mode allows you to take a sequence of 2–5 pictures that can be stitched together in order to capture a scene too wide to fit into a single picture. In Panorama mode, you take a picture as the first in the panoramic sequence, and each subsequent picture you take is added to the panorama until you end the sequence by pressing the 
button, or until you have taken the fifth picture in the sequence. You can then preview a low-resolution image of your panorama with the Preview Panorama menu option in the Playback Menu (see page 101), or you can transfer the images in the panoramic sequence to your computer for automatic stitching together and then viewing or printing.
NOTE: Digital zoom is not available in Panorama mode.
52 HP Photosmart R717 User’s Manual