Fastrax IV Instruction Manual - page 42

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3.12.5  Camera Setup

SHARPNESS            The higher the value, the more edges in the picture will be 

                                   enhanced (0~15) 

Digital ZOOM           OFF: Zoom range is limited to the optical. 

2X: Zoom is extendable up to 2x of digital range. 

4X: Zoom is extendable up to 4x of digital range.  

MAX: Zoom is extendable Max digital zoom range. 

IMAGE FLIP             This function turns the video output from the camera upside down and 

reverses it horizontally.  

This option is helpful to install in the opposite side. 

PRESET FREEZE      ON / OFF 

ON  

            The image is frozen during calling preset.  

BRIGHT OFFSET      -7,…,0(default),…7 

 Adjust the brightness level (AUTO, SHUTTER PRIO, IRIS PRIO mode 

only) 

SLOW RESPONSE  

The slow response function allows you to lengthen the automatic exposure response speed 

from 1 up to 32 times.  For example, with the normal setting (about 1 second), if the 

headlights of a car are caught by the camera, the camera automatically adjusts the exposure 

so that it can shoot a high-intensity subject (in this case, the headlights). As a result, images 

around the headlights, that is, the rest of the subject, except the headlights, becomes 

relatively dark, and poorly distinguished. However, using the slow response function can still 

easily distinguish the portions of the image surrounding the headlights. 

DN THRESHOLD      5, … 18 (default),…, 28 

Adjusts the level of light at which the camera automatically switches 

out of night mode (B/W) operation.