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Instant AF

Since it is critical to achieve very sharp focus when shooting in High Definition, the HV20 camcorder features Canon's revolutionary Instant AF auto focus system. It offers a dramatic improvement in auto focus speed and accuracy (compared to traditional auto focus systems). Instant AF significantly decreases the time it takes to find focus -- even in low light conditions -- and improves the camcorder's ability to maintain focus.

Instant AF
The Instant AF feature uses an external AF sensor to measure the distance to the subject. Then, a TV AF sensor fine-tunes the focus. A change in the contrast of the subject can sometimes lead to a loss of focus, even though the subject has not moved. With Instant AF, the external sensor "sees" that the subject has not moved. Focus is not lost, and your HD image remains sharp.

The benefits of Instant AF are especially apparent in high brightness and night situations. It's even possible to capture fast, accurate focusing, even when following a moving subject.

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