Didn't work for me
First image is P-TTL with 1.02
Second is manual with 1.21
Third image is P-TTL with 1.21
No discernible difference between 1.02 and 1.21 in terms of lag but huge difference between manual and P-TTL regardless of firmware version. Still way too slow in P-TTL to capture 'spur of the moment' shots, which is when I need P-TTL most.
Not sure what's happening with the exposure probably nothing to do with the firmware upgrade - possibly inadvertently different orientation of the flash head before and after the update.
In the meantime I also did a little test shooting video of me pressing the shutter button. In manual the flash lights either in the same frame showing my finger contacting the button or at latest the next one. In P-TTL I get about 4 to 7 frames between my finger hitting the shutter and the pre-flash illuminating. Then there are one or two further frames before the main flash illuminates. I shot the video with VGA resolution with a Q10, but I don't know what frame rate that corresponds to.
Sorry for the double post - I inadvertently posted in the old thread.
Read more at:
https://www.pentaxforums.com/forums/172-pentax-k-3/296958-pentax-k3ii-has-shu...#ixzz3cNIZQCCa