Casio QV-R41 Owners Manual - Page 54
Recording Precautions, About Auto Focus, Solid color walls or objects with little contrast - problems
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BASIC IMAGE RECORDING Recording Precautions • Never open the battery compartment cover while the green operation lamp is flashing. Doing so not only causes the current image to be lost, it can also corrupt images already stored in file memory and even lead to malfunction of the camera. • Never remove the memory card while an image is being recorded to the memory card. • Fluorescent lighting actually flickers at a frequency that cannot be detected by the human eye. When using the camera indoors under such lighting, you may experience some brightness or color problems with recorded images. • When "Auto" is selected for the ISO sensitivity setting (page 86), the camera automatically adjusts its sensitivity in accordance with the brightness of the subject. This can cause some static noise to appear in images of relatively dark subjects. • When recording a dimly lit subject while "Auto" is selected for the ISO sensitivity setting (page 86), the camera increases sensitivity and uses a slower shutter speed. Because of this, you need to guard against camera movement if you have flash turned off (page 58). • If unwanted light is shining on the lens, shade the lens with your hand when recording the image. About Auto Focus • Auto Focus tends not to work well if the camera is moved during recording, or when recording the types of subjects listed below. - Solid color walls or objects with little contrast - Strongly backlit objects - Polished metal or other brightly reflective objects - Venetian blinds or other horizontally repeating patterns - Multiple images that are varying distances from the camera - Subjects in poorly lit areas - Moving subjects • Note that a green operation lamp and focus frame do not necessarily guarantee that an image is in focus. • If Auto Focus does not produce the results you want for some reason, try using focus lock (page 70) or manual focus (page 69). 54