Ring doubling and twisting frames 环锭并捻机 ; 老西整理
Ring doubling and agee frames 环锭并捻机
The LUMIX GH2 also features faster AF, reducing detection time for focusing to approximately 0.1 second3 by doubling the drive speed from 60 frames per second to 120 frames per second.
ENGADGET: Panasonic's $900 Lumix GH2 officially debuts: 16MP, 1080p movie mode, 3D interchangeable lens
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