Canon研發的「雙像素CMOS自動對焦」是一種創新的影像平面相位檢測自動對焦技術,其採用的CMOS影像感應器上所有有效像素均能同時提供成像及相位檢測自動對焦(Phase-difference AF)功能。CMOS影像感應器上的每個像素 (可輸出影像訊號的最小構成單位) 均內置兩個獨立的感光二極體 (將光轉換成電子訊號的元件),輸出的訊號可作成像及相位檢測自動對焦之用。
當使用即時顯示模式拍攝時,「雙像素CMOS自動對焦」能帶來與採用觀景器拍攝接近的體驗,可以在畫面中大部分範圍一直進行相位檢測自動對焦直到成功合焦,確保影像對焦銳利。
而在拍攝短片時,「雙像素CMOS自動對焦」比以往的影像平面自動對焦技術能縮短對焦時間,對焦追蹤表現更優越,大幅提升短片伺服自動對焦(Movie Servo AF)的追蹤表現,即使為高速移動的主體拍攝短片,仍能提供更流暢的連續自動對焦
雙像素CMOS自動對焦原理
小貼士 |
以下為受惠於「雙像素CMOS自動對焦」技術的EF/ EF-S 鏡頭: |
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定焦鏡頭 | 變焦鏡頭 | 微距鏡頭 | EF-S 鏡頭 |
EF 14mm f/2.8L II USM | EF 8-15mm f/4L Fisheye USM | EF 50mm f/2.5 Compact Macro | EF-S 60mm f/2.8 Macro USM |
EF 15mm f/2.8 Fisheye | EF 16-35mm f/2.8L II USM | EF 100mm f/2.8 Macro USM | EF-S 10-18mm f/4.5-5.6 IS STM |
EF 20mm f/2.8 USM | EF 16-35mm f/4L IS USM | EF 100mm f/2.8L Macro IS USM | EF-S 10-22mm f/3.5-4.5 USM |
EF 24mm f/1.4L II USM | EF 17-40mm f/4L USM | EF 180mm f/3.5L Macro USM | EF-S 15-85mm f/3.5-5.6 IS USM |
EF 24mm f/2.8 | EF 20-35mm f/3.5-4.5 USM | EF-S 17-55mm f/2.8 IS USM | |
EF 24mm f/2.8 IS USM | EF 22-55mm f/4-5.6 USM | EF-S 17-85mm f/4-5.6 IS USM | |
EF 28mm f/1.8 USM | EF 24-70mm f/2.8L USM | EF-S 18-55mm f/3.5-5.6 | |
EF 28mm f/2.8 | EF 24-70mm f/2.8L II USM | EF-S 18-55mm f/3.5-5.6 II | |
EF 28mm f/2.8 IS USM | EF 24-70mm f/4L IS USM | EF-S 18-55mm f/3.5-5.6 USM | |
EF 35mm f/1.4L USM | EF 24-105mm f/4L IS USM | EF-S 18-55mm f/3.5-5.6 II USM | |
EF 35mm f/2 | EF 28-90mm f/4-5.6 | EF-S 18-55mm f/3.5-5.6 III | |
EF 35mm f/2 IS USM | EF 28-90mm f/4-5.6 USM | EF-S 18-55mm f/3.5-5.6 IS | |
EF 40mm f/2.8 STM | EF 28-90mm f/4-5.6 II | EF-S 18-55mm f/3.5-5.6 IS II | |
EF 50mm f/1.0L USM | EF 28-90mm f/4-5.6 II USM | EF-S 18-135mm f/3.5-5.6 IS | |
EF 50mm f/1.2L USM | EF 28-90mm f/4-5.6 III | EF-S 18-55mm f/3.5-5.6 IS STM | |
EF 50mm f/1.4 USM | EF 28-135mm f/3.5-5.6 IS USM | EF-S 18-135mm f/3.5-5.6 IS STM | |
EF 50mm f/1.8 | EF 28-200mm f/3.5-5.6 | EF-S 18-200mm f/3.5-5.6 IS | |
EF 50mm f/1.8 II | EF 28-200mm f/3.5-5.6 USM | EF-S 55-250mm f/4-5.6 IS | |
EF 85mm f/1.2L USM | EF 28-300mm f/3.5-5.6L IS USM | EF-S 55-250mm f/4-5.6 IS II | |
EF 85mm f/1.2L II USM | EF 35-350mm f/3.5-5.6L USM | EF-S 55-250mm f/4-5.6 IS STM | |
EF 85mm f/1.8 USM | EF 38-76mm f/4.5-5.6 | ||
EF 100mm f/2 USM | EF 55-200mm f/4.5-5.6 USM | ||
EF 135mm f/2L USM | EF 55-200mm f/4.5-5.6 II USM | ||
EF 135mm f/2.8 Soft Focus | EF 70-200mm f/2.8L USM | ||
EF 200mm f/1.8L USM | EF 70-200mm f/2.8L IS USM | ||
EF 200mm f/2L IS USM | EF 70-200mm f/2.8L IS II USM | ||
EF 200mm f/2.8L USM | EF 70-200mm f/4L USM | ||
EF 200mm f/2.8L II USM | EF 70-200mm f/4L IS USM | ||
EF 300mm f/2.8L USM | EF 70-300mm f/4-5.6 IS USM | ||
EF 300mm f/2.8L IS USM | EF 70-300mm f/4-5.6L IS USM | ||
EF 300mm f/2.8L IS II USM | EF 70-300mm f/4.5-5.6 DO IS USM | ||
EF 300mm f/4L USM | EF 75-300mm f/4-5.6 USM | ||
EF 300mm f/4L IS USM | EF 75-300mm f/4-5.6 II | ||
EF 400mm f/2.8L II USM | EF 75-300mm f/4-5.6 II USM | ||
EF 400mm f/2.8L IS USM | EF 75-300mm f/4-5.6 III | ||
EF 400mm f/2.8L IS II USM | EF 75-300mm f/4-5.6 III USM | ||
EF 400mm f/4 DO IS USM | EF 75-300mm f/4-5.6 IS USM | ||
EF 400mm f/5.6L USM | EF 100-400mm f/4.5-5.6L IS USM | ||
EF 500mm f/4L IS USM | EF 200-400mm f/4L IS USM Extender 1.4× | ||
EF 500mm f/4L IS II USM | |||
EF 600mm f/4L IS USM | |||
EF 600mm f/4L IS II USM | |||
EF 800mm f/5.6L IS USM |