Nikon COOLPIX P7800 Reference Manual - Page 210

Zoom Speed Press the d button M z tab (A13) M Zoom speed Set the zoom operation speed. Slow down the zoom speed to minimize the recording of the zoom operating noise during movie recording. Option k Auto (default setting) z Normal y Quiet Description During still image shooting, the zoom operates at the Normal speed. During movie recording, the zoom operates at a lower speed than Normal. During both still image shooting and movie recording, the zoom operates at the normal speed. Rotating the zoom control all the way in either direction adjusts the zoom quickly, while moving the control partially adjusts the zoom slowly. During both still image shooting and movie recording, the zoom operates at a lower speed than Normal. Fixed Aperture Press the d button M z tab (A13) M Fixed aperture Option Description In C or D shooting mode, zooming can be performed with minimum changes in the aperture value. On • When the f-number exceeds the aperture control range at a new zoom position, the aperture value is not fixed. Off (default setting) The aperture value is not fixed. C More Information See "Aperture Value (F-number) and Zoom" (A50) for more information. Reference Section E82