– locations where there is not much contrast such as a white wall– locations where the front cover often becomes dirty– when there is harsh flickering• When images in the near-infrared light area change from color to black & white, images may be out offocus due to the nature of optical properties. In this case, the focus can automatically be corrected byselecting “Auto” or “Preset” for “Adjusting method” (the focus will not automatically be adjustedaccording to the illumination level change once the focus is corrected).[Focus]The focus can be adjusted manually.• [Near] button: Click this button to adjust the focus to the “Near” side.• [Reset] button: Click this button to reset the focus to the default.• [Far] button: Click this button to adjust the focus to the “Far” side.[Adjusting method]SFx311SPW311LSPW312LSPW531LSPW532LSPN531SPN311Select the focus adjustment method upon switching between the color mode and the black & white mode.• Auto: Adjusts the back focus function automatically and corrects the focus when switching between colorand black & white images.• Preset: Performs the preset movement to each specified back focus position when switching betweencolor and black & white images. The preset position is the back focus position specified last time, whichwas automatically memorized for each of color images and black & white images.• Preset: Performs the preset movement to each specified focus position when switching between color andblack & white images. The preset position is the focus position specified last time, which was automaticallymemorized for each of color images and black & white images.• Fix: Fixes the position after adjusting the focus either automatically or manually.• Default: Auto[Close] buttonClick this button to close the “Focus” setup menu.11.6 Back focus setting (“Back focus” setup menu)SPN311SPN531Click the [Setup>>] button of “Back focus” on the [Image quality] tab of the “Image/Audio” page.Adjust the back focus by moving the MOS image sensor of the camera to the appropriate position. Manual andauto adjustment are available.100 Operating Instructions11 Configure the settings relating to images and audio [Image/Audio]
