User Manual for Vivitar 3715: 

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Chapter Summary: Your camera is equipped with both an optical viewfinder and a 1.5" LCD monitor to compose images...If your batteries are low, it is recommended that you only compose images by using the viewfinder...However, always use the LCD monitor for macro shots to avoid parallax effects......

User Manual for Vivitar 3715 Users also looked at: Page 40 - Digital zoom You can take shots with the digital zoom by activating the digital zoom function...To enable this option, first press the button...Then select [On] by using the / button and press OK...... Page 16 - Setting the date and time Camera is turned on for the first time (after setting the language) Camera is turned on after removing the batteries/AC power adapter or replacing the batteries...... 1...Press OK after all field is set...To decrease a value, press the / button...... Page 20 - Using the digital zoom You can only set the digital zoom at the resolution of 2048x1536 pixels; digital zoom is not... available at the resolution of 1024x768 pixels and 640x480 pixels...When you play back a "digitally zoomed" image, the image size is 1024x768 pixels......