stanj wrote: arbitrage wrote:
I got the R5II back in my hands today for another day of testing. I wanted to confirm for myself how the pre-capture is performing when not at 30FPS. There was lots of confusion about this and I continue to read conflicting reports. Well after a few short mins of testing I can 100% confirm what it is doing.
As a summary here are the three theories...I'll use the example of 5FPS as that is how I tested:
1) Precapture always saves 0.5s at the selected FPS. This should give one 2.5 (plus the 1 or 2 you get when pressing the shutter) frames at 5FPS.
2) Precapture always saves 15 frames at the selected FPS. This should give one 15 frames (plus the one or two you get when you hit the shutter) and would go back 3s in time.
3) Precapture is always running at 30FPS regardless of your FPS and therefore always saves 0.5s=15frames. It then switches to your selected FPS for the portion of your burst after hitting the shutter.
Well it was easy to test, especially at 5FPS, where it is easy to only fire one or two shots after hitting the shutter. I shot my phone's stopwatch to check if it was going back 0.5s or 3s.
The results:
Precapture is always shooting 30FPS for 0.5s into the past. You always get 15 shots at 30FPS no matter what you have your FPS set to at the time. The camera then fires at your selected FPS after the burst.
I respect you as a photographer, but your results clearly contradict my results I have supported mine with photos of a stopwatch. In my case, precapture is always 15 frames, regardless of frame rate, thus 2s at 7.5fps.
Either one of us is experimenting wrong or there are different ways to set it up.
**EDIT** See my posts further down and ignore the rest of this one. Somehow I had moved my camera back to 30FPS when I did my stopwatch test. My other tests confirm what you are seeing...at 5FPS, I got 15 frames but they covered 3s worth of time.
I got the same results as you. 15 shots. But it is 15 shots for 0.5s so shooting at 30FPS regardless of FPS. It isn't 15 shots for 0.5s x set FPS. In my example that would have given me 3 seconds back in time (15 frames/5FPS=3s) but it only gave 0.5s back in time.
I have stopwatch photos but haven't downloaded my card yet. My stopwatch goes down to hundredths of a second (iPhone) It was a long, tiring day of shooting so I'll get to culling tomorrow.
stanj wrote: arbitrage wrote:
I got the R5II back in my hands today for another day of testing. I wanted to confirm for myself how the pre-capture is performing when not at 30FPS. There was lots of confusion about this and I continue to read conflicting reports. Well after a few short mins of testing I can 100% confirm what it is doing.
As a summary here are the three theories...I'll use the example of 5FPS as that is how I tested:
1) Precapture always saves 0.5s at the selected FPS. This should give one 2.5 (plus the 1 or 2 you get when pressing the shutter) frames at 5FPS.
2) Precapture always saves 15 frames at the selected FPS. This should give one 15 frames (plus the one or two you get when you hit the shutter) and would go back 3s in time.
3) Precapture is always running at 30FPS regardless of your FPS and therefore always saves 0.5s=15frames. It then switches to your selected FPS for the portion of your burst after hitting the shutter.
Well it was easy to test, especially at 5FPS, where it is easy to only fire one or two shots after hitting the shutter. I shot my phone's stopwatch to check if it was going back 0.5s or 3s.
The results:
Precapture is always shooting 30FPS for 0.5s into the past. You always get 15 shots at 30FPS no matter what you have your FPS set to at the time. The camera then fires at your selected FPS after the burst.
I respect you as a photographer, but your results clearly contradict my results I have supported mine with photos of a stopwatch. In my case, precapture is always 15 frames, regardless of frame rate, thus 2s at 7.5fps.
Either one of us is experimenting wrong or there are different ways to set it up.
I got the same results as you. 15 shots. But it is 15 shots for 0.5s so shooting at 30FPS regardless of FPS. It isn't 15 shots for 0.5s x set FPS. In my example that would have given me 3 seconds back in time (15 frames/5FPS=3s) but it only gave 0.5s back in time.
I have stopwatch photos but haven't downloaded my card yet. My stopwatch goes down to hundredths of a second (iPhone) It was a long, tiring day of shooting so I'll get to culling tomorrow.
stanj wrote: arbitrage wrote:
I got the R5II back in my hands today for another day of testing. I wanted to confirm for myself how the pre-capture is performing when not at 30FPS. There was lots of confusion about this and I continue to read conflicting reports. Well after a few short mins of testing I can 100% confirm what it is doing.
As a summary here are the three theories...I'll use the example of 5FPS as that is how I tested:
1) Precapture always saves 0.5s at the selected FPS. This should give one 2.5 (plus the 1 or 2 you get when pressing the shutter) frames at 5FPS.
2) Precapture always saves 15 frames at the selected FPS. This should give one 15 frames (plus the one or two you get when you hit the shutter) and would go back 3s in time.
3) Precapture is always running at 30FPS regardless of your FPS and therefore always saves 0.5s=15frames. It then switches to your selected FPS for the portion of your burst after hitting the shutter.
Well it was easy to test, especially at 5FPS, where it is easy to only fire one or two shots after hitting the shutter. I shot my phone's stopwatch to check if it was going back 0.5s or 3s.
The results:
Precapture is always shooting 30FPS for 0.5s into the past. You always get 15 shots at 30FPS no matter what you have your FPS set to at the time. The camera then fires at your selected FPS after the burst.
I respect you as a photographer, but your results clearly contradict my results I have supported mine with photos of a stopwatch. In my case, precapture is always 15 frames, regardless of frame rate, thus 2s at 7.5fps.
Either one of us is experimenting wrong or there are different ways to set it up.
I got the same results as you. 15 shots. But it is 15 shots for 0.5s so shooting at 30FPS regardless of FPS. It isn't 15 shots for 0.5s x set FPS. In my example that would have given me 3 seconds back in time (15 frames/5FPS=3s) but it only gave 0.5s back in time.
I have stopwatch photos but haven't downloaded my card yet. It was a long, tiring day of shooting so I'll get to culling tomorrow.
Sep 01, 2024 at 07:41 PM
Previous versions of arbitrage's message #16631541 « R5II Precapture »
I have supported mine with photos of a stopwatch. In my case, precapture is always 15 frames, regardless of frame rate, thus 2s at 7.5fps.