User Manual of Digital Video Recorder 
 
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6.2  Auxiliary Functions of Playback 
6.2.1  Playing Back Frame by Frame 
Purpose: 
Play video files frame by frame, in order to view the image details of the video when abnormal events occur. 
Steps: 
•  Using a Mouse: 
Go to Playback interface. If you choose playback of the record file: click button    until the speed changes 
to Single frame and one click on the playback screen represents playback of one frame. If you choose reverse 
playback of the record file: click button    until the speed changes to Single frame and one click on the 
playback screen represents reverse playback of one frame. It is also feasible to use button    in toolbar. 
•  Using the Front Panel: 
Rotate and hold the outer ring on Jog Shuttle counterclockwise (for DS-8100/8000-ST series only) or click the 
  button to set the speed to Single frame. One click on button  , one click on the playback screen or Enter 
button on the front panel represents playback or reverse playback of one frame. 
6.2.2  Digital Zoom 
 
We use the interface of DS-9000HFI-RT series (unless otherwise stated) as example to describe the following 
settings. 
Steps: 
1.  Enter the Playback interface and start the playback. For details, see Chapter 6.1. 
2.  Click the icon    on the playback control toolbar to enter Digital Zoom mode. 
3.  Click-and-drag the mouse to draw a red rectangle on the window in the lower-right corner of the interface. 
And then the image within it will be enlarged up to 16 times. 
4.  Right-click to exit the Digital Zoom mode.