Timeline for How can I make my camera focus on the eyeball rather than eyelashes?
Current License: CC BY-SA 3.0
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| Nov 18, 2016 at 12:33 | comment | added | Russell McMahon | @mattdm ... in real-enough-time that the user does not find the FP display lagging unnaturally compared to the image proper. The data processing does not seem exceptionally onerous but must be done across the whole image N times/second in enough detail to provide useful focus area delineation. I do not know what sort of processing load that represents. | FWIW I understand that studio video cameras have had FP for 40 or 50 years. | |
| Nov 18, 2016 at 12:29 | comment | added | Russell McMahon | @mattdm Yes - it's processing related. My poorly made point is that while there can be unforeseen issues doing various things in various situations, the fact that Sony finds it realistic to implement FP suggests that there are (hopefully no major show stoppers if others wish to do the same wit their sensors. | FP works ~ by high pass filtering the image data and then looking for areas of local contrast difference above some selected level. An electronic viewfinder or display is needed to display the information and the update rate must be adequate to keep up with data changes ... | |
| Nov 17, 2016 at 11:34 | comment | added | mattdm | I don't think the focus peaking is a feature of the sensor itself, is it? Isn't it an image processing feature? | |
| Nov 16, 2016 at 23:35 | history | edited | Russell McMahon | CC BY-SA 3.0 |
added 1730 characters in body
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| Nov 16, 2016 at 22:10 | vote | accept | vahidg | ||
| Nov 16, 2016 at 11:22 | history | answered | Russell McMahon | CC BY-SA 3.0 |