Hitachi VM-H71A 用户手册

Advanced Techniques 

 

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The auto focus will not work under the following conditions and you must 
focus manually: 

Objects outside the center of the viewfinder 

Objects at different distances in the center of the viewfinder 

Brightly lit objects such as a neon light, objects lit by 

spotlight, etc. 

Objects behind water dappled or dusty glass 

Objects with little difference in light reflection such as a white 

wall 

Rapidly moving objects 

Dark objects 

Note: With the T zoom control you can use the auto focus with subjects that 
are 3.6 feet away from the lens and further away to infinity. With the W zoom 
control you can use the auto focus with subjects 1.2 inches away from the 
lens and further away to infinity. 

1. Press the FOCUS select button. FOCUS displays in the viewfinder. You 
can adjust the focus manually. 
2. Use the power zoom T control to zoom up completely to your subject. If 
you don't use the T control to zoom to the picture you want, the picture 
may fall out of focus when actual recording starts. 
3. Turning the Focus control until the subject is in focus. 
4. Use the power zoom W control to zoom back to the picture you desire.