焦深

焦深，又叫聚焦深度，係用嚟測量圖像平面嘅位置公差同鏡頭嘅關係。喺相機嚟講，焦深表示相機入面菲林位移嘅公差。有啲人會將「焦深」同「景深」撈亂，其實景深係鏡頭前面可接受聚焦嘅區域，而焦深係指鏡頭後面嘅區域。

攷 

Hart, Douglas C. 1996. The Camera Assistant: A Complete Professional Handbook. Newton, MA: Focal Press. 
 Hummel, Rob (editor). 2001. American Cinematographer Manual, 8th edition. Hollywood: ASC Press. 
 Larmore, Lewis. 1965. Introduction to Photographic Principles. 2nd ed. New York: Dover Publications, Inc.

Lipson, Stephen G., Ariel Lipson, and Henry Lipson. 2010. Optical Physics. 4th ed. Cambridge: Cambridge University Press.  (scheduled release October 2010)

Ray, Sidney F. 2000. The geometry of image formation. In The Manual of Photography: Photographic and Digital Imaging, 9th ed. Ed. Ralph E. Jacobson, Sidney F. Ray, Geoffrey G. Atteridge, and Norman R. Axford. Oxford: Focal Press. 

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