10-30-2021, 09:07 AM
(This post was last modified: 10-30-2021, 09:26 AM by Brightcolours.)
You can't see the difference between 60Hz and 120 Hz timing wise.You do not lose any bird with a 60Hz feed, the frequency has nothing to do with your proposed... delay. A strange idea to think that 60Hz somehow makes you lose birds in the frame of the view finder.... The latency you mention had to do with the arrival to the EVF of the whole video stream, not the time between frames.
To illustrate: if you test your reaction time, you can see just how little 1/60th of a second is, let alone half of it (the difference between 1/60th and 1/120th).
I tried this website test once (casually), to see what my score would be. It was around 0.35 seconds. So, about 1/3rd of a second, or 3Hz. 60 / 3 = 20 times longer than what 1/60th of a second actually is, or 40 times bigger than the difference between 60Hz and 120HZ.
http://www.openphotographicsociety.org/shop-and-tools/calculators-and-utilities/time-lapse-calculator/human-reaction-time-test
Why then a higher frame rate? Because, at certain exposure times used by the live view, the feel is more smooth. And, if the live view feed frequency is directly coupled to the read out of the imaging sensor, you get more image/PD data to calculate AF needs.
To illustrate: if you test your reaction time, you can see just how little 1/60th of a second is, let alone half of it (the difference between 1/60th and 1/120th).
I tried this website test once (casually), to see what my score would be. It was around 0.35 seconds. So, about 1/3rd of a second, or 3Hz. 60 / 3 = 20 times longer than what 1/60th of a second actually is, or 40 times bigger than the difference between 60Hz and 120HZ.
http://www.openphotographicsociety.org/shop-and-tools/calculators-and-utilities/time-lapse-calculator/human-reaction-time-test
Why then a higher frame rate? Because, at certain exposure times used by the live view, the feel is more smooth. And, if the live view feed frequency is directly coupled to the read out of the imaging sensor, you get more image/PD data to calculate AF needs.