本文发表在 rolia.net 枫下论坛Cameras such as the JVC X3/X2B and the Panasonic Supercam as typical examples of the one-piece camcorder style. They are usually about 3 pounds lighter than their two-piece dockable counterparts (i.e. KY-27/BR-S422, WV-F565/AG-7450, etc
3-CCD cameras come in three basic forms, the one-piece camcorder, the two piece “dockable” and the stand-alone camera head configuration. 3-Chip cameras require that one of their three built-in color temperature filters be called up for that specific illumination. The three filters, which are mounted on a rotating turret immediately in front of the CCD devices, are: 560K+ND (neutral density) for outdoors in bright sunlight. 5600K for outdoors in normal sunlight. And 3200K for low-light outdoors or artificial light (indoors or outdoors). Some cameras have additional filter on the turret for special effects
Some of the newer cameras permit the user to assign different gain boost value to the otherwise +9 and +18 positions, such as +6 and +12, etc. Some cameras allow one of those two positions to be a continuously variable gain (between zero and +18) that is automatically selected by the camera
The light sensitivity of 3-Chip cameras vary vastly between different brands and models and the rating system for comparing low-light capabilities of a given camera is done by listing it’s F-stop opening under a 2000 lux lighting environment更多精彩文章及讨论,请光临枫下论坛 rolia.net
3-CCD cameras come in three basic forms, the one-piece camcorder, the two piece “dockable” and the stand-alone camera head configuration. 3-Chip cameras require that one of their three built-in color temperature filters be called up for that specific illumination. The three filters, which are mounted on a rotating turret immediately in front of the CCD devices, are: 560K+ND (neutral density) for outdoors in bright sunlight. 5600K for outdoors in normal sunlight. And 3200K for low-light outdoors or artificial light (indoors or outdoors). Some cameras have additional filter on the turret for special effects
Some of the newer cameras permit the user to assign different gain boost value to the otherwise +9 and +18 positions, such as +6 and +12, etc. Some cameras allow one of those two positions to be a continuously variable gain (between zero and +18) that is automatically selected by the camera
The light sensitivity of 3-Chip cameras vary vastly between different brands and models and the rating system for comparing low-light capabilities of a given camera is done by listing it’s F-stop opening under a 2000 lux lighting environment更多精彩文章及讨论,请光临枫下论坛 rolia.net