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  #154  
Gammal 2019-07-19, 16:10
jonasfj
Avslutat medlemskap
 
Medlem sedan: sep 2008
Inlägg: 1 652
rronnbac skrev: Nej, Sony t.ex. använder dedikerade pixlar för autofokus, och som jag förstått det fungerar dessa aldrig som reguljära pixlar. Detsamma gäller alla tillverkare utom Canon, men det finns mobilkameror som använder dual pixel af
Så här skriver Thom Hogan:

"The Z6 and Z7 get their phase information right on the main image sensor. Every twelfth photosite row is dual purpose on these cameras: when composing an image, those rows can collect focus information at nearly every photosite on the row (remember that’s 8256 cells on the Z7, 6024 on the Z6). When taking an image, those same photosite rows collect image information.

This is usually referred to as dual-pixel: as each pixel location (photosite) has two functions. In Canon’s current DSLR and mirrorless world, every photosite is dual-pixel. In the Nikon and Sony world, it’s only evenly spaced rows of photosites that have this attribute. "