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Examples
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Or live-view contrast-detect focus, for slow work on a tripod.
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The contrast-detect autofocus is the main culprit, taking a second or so, and this also increases shot-to-shot time to about two seconds unless you switch to manual focus.
PC Authority 2010
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All lenses in the GXR system use contrast-detect autofocus and this is painfully slow compared to the phase-detect system used by a true DSLR.
PC PRO 2010
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Just as we'd heard, the big news is the addition of a 1080p/24 H. 264 AVCHD movie mode with continuous contrast-detect autofocus, complete with face detection and subject tracking.
Engadget 2010
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# Live View with contrast-detect AF, face detection and subject tracking
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"Enabled" (that's CF-IV-2 set to 1 on the 5DII and 50D, the two bodies on which I have tried this), then remote AF, both contrast-detect (Live Mode) and phase-detect (Quick Mode), is disabled.
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Live View mode offers a choice between phase-detect, contrast-detect modes, plus Face detect mode
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It allows contrast-detect AF on a desired point within a frame.
Photography Tips Dphotojournal com 2010
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Autofocus is achieved using the unchanged contrast-detect mechanism, but uncountable bridge cameras accent a directions gratify sapient, in some cases using a unhook blurry resemble closely, looking for greater control.
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In Tripod mode, the D300S features contrast-detect AF.
Photography Tips Dphotojournal com 2010
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