Assertion: camera's image | /r/AtLocation | focus
Facets:
Source sentences:
text: Once the two images match, the image is in focus.
text: The camera gets the initial image, which may be in focus, but in order to verify, it has to start moving the lens to see if the image gets sharper or more blurry.
text: Contrast detection, on the other hand, works by looking for contrast alone, as maximum contrast occurs when an image is in focus.
text: Mirrorless cameras, on the other hand, use contrast detection to measure the contrast between pixels on the sensor until it detects enough contrast to find that the image is in focus.
text: Nothing about the lens has changed; it’s just that for the image to be in focus, the sensor has to sit a certain distance from the lens which means a smaller sensor will always have a narrower field of view when using a lens of the same focal length.
text: When doing this, your camera will enter "release priority mode" and it will take pictures when the shutter is down regardless of if the image is in focus or not.
text: Essentially, PDAF uses dedicated left-looking and right-looking pixels on the image sensor to calculate whether the image is in focus.