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R5II Precapture

rscheffler
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p.3 #1 · p.3 #1 · R5II Precapture

Visually Oriented wrote:
To be clear, pre-continuos shooting does not always run at 30 fps. It operates at what-ever drive speed is selected. If you have the camera set at 5 fps then that is the speed pre-continuos shooting works at. It does capture 15 frames IF the shutter button is half-pressed long enough to capture 15 shots at the selected drive speed. So if the camera is in electronic shutter at 5fps you have to half-press the shutter for at least 3 seconds before fully depressing the shutter button for the camera to capture 15 frames.

arbitrage wrote:
Ok. That is how I thought it would work initially. But that isn't what others said earlier. They were finding 15 shots but only going back 0.5s in time. Not 15 shots going back 1.5s if at 10FPS or 15 shots going back 0.75s at 20FPS.
So I'm confused.
The camera will be in my hands by 5:30PM today so I will test myself.

That was also how I experienced it when using a certain other camera that cannot be named.

So was surprised by the conflicting reports.

Mike Jacks0n wrote:
Anyone else noticing this?

I noticed when I'm in the EVF, focusing (back button), using Manual mode, sometimes I can't change the shutter speed (with the front wheel) without letting go of the back button focus. Sometimes you just want to bump the exposure up or down but sometimes it forces you to stop what your doing and do it effectively with no other actions being performed (EVF use is still OK). For me its wasn't occurring every time, but I noticed it a few times.

There was a comment in another thread that they couldn't change exposure settings with BBF or maybe the shutter release half pressed. Sounded like the default setting of a custom function locks exposure when focus is acquired and it was necessary to disable it.

Work backwards from this post.

Aug 22, 2024 at 01:31 PM

stanj
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p.3 #2 · p.3 #2 · R5II Precapture

rscheffler wrote:
There was a comment in another thread that they couldn't change exposure settings with BBF or maybe the shutter release half pressed. Sounded like the default setting of a custom function locks exposure when focus is acquired and it was necessary to disable it.

You can't change exposure if you have pre-rec engaged even with "normal" shutter button operation. You have to release the shutter, change the exposure, and re-engage the shutter. Something new I learned today.

Aug 23, 2024 at 12:04 AM

Mike Jacks0n
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p.3 #3 · p.3 #3 · R5II Precapture

Could be, but I use the front top dial for shutter speed, so I have to release PRE-shooting to turn the front dial (pointer finger). So this shouldn't be the issue. However, it brings up a possible solution, in that something else may be running and stopping the change. Again, it doesn't happen every time, just sometimes. Anyway, thanks for the idea, may yet still help get to the bottom of it.

rscheffler wrote:
There was a comment in another thread that they couldn't change exposure settings with BBF or maybe the shutter release half pressed. Sounded like the default setting of a custom function locks exposure when focus is acquired and it was necessary to disable it.

Work backwards from this post.

I don't use a custom AE lock timeout, and oddly the issue doesn't occur every time I go from focus to change of settings. But you two bring up an interesting point to watch out for. I'm guessing it will be clear with more time using it.

Aug 23, 2024 at 12:49 PM

KINGOFKNGS
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p.3 #4 · p.3 #4 · R5II Precapture

During the time the buffer is running for recapture, I am NOT able to change any exposure parameters. After I start capturing I can. Prior to changing the custom function, I was not able to change at all when the shutter release was either half depressed or fully depressed.

Aug 23, 2024 at 06:06 PM

Mike Jacks0n
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p.3 #5 · p.3 #5 · R5II Precapture

KINGOFKNGS wrote:
During the time the buffer is running for recapture...

There might be something to it, but I can turn PRE on, max out the buffer and change shutter speed, ISO, and aperture while the card is writing. Is there something else you are using when you recognize it?

If you are only referring to the PRE buffering, yes, that locks the settings down.

Aug 23, 2024 at 06:47 PM

KINGOFKNGS
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p.3 #6 · p.3 #6 · R5II Precapture

Yes to your last sentence.

Mike Jacks0n wrote:
There might be something to it, but I can turn PRE on, max out the buffer and change shutter speed, ISO, and aperture while the card is writing. Is there something else you are using when you recognize it?

If you are only referring to the PRE buffering, yes, that locks the settings down.

Aug 24, 2024 at 06:49 AM

arbitrage
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p.3 #7 · p.3 #7 · R5II Precapture

I didn't have a lot of time to try and figure out exactly how the camera is running in pre-capture when your FPS is less than 30. Is it still running at 30FPS? Is it just doing 15 shots but at lower FPS? Is it just doing 0.5s but at the lower FPS? I'm still not sure.

I mentioned in an earlier post how the pre-capture would suit BBAF shooters because they could easily leave it on all the time and just half press the shutter along with their BBAF button when they want it.

I did find that with my shutter AF setup I could get close to this most of the time and I would still leave pre-capture on all the time. I set my shutter button to be the Spot AF with Lock icon. AF-ON to EyeAF and * to Zone AF (with AF active like BBAF). Therefore the only AF mode where I would need to be 1/2 pressing the shutter and getting pre-capture whether I wanted it or not would be the Spot AF (lock icon...no tracking, no EyeAF). That AF mode is mostly just used for initial helping the AF get close to what you want BEAF to take over with. So for most of my shooting when EyeAF or Zone AF were my main modes I was basically using the camera as a BBAF shooter would and no pre-capture was being recorded. I could then just half press shutter while doing the EyeAF with the AF-ON button if I wanted pre-capture....the back buttons override the Spot AF programmed to the shutter button so it works. I did try just switching to full BBAF since I was close to doing so anyways but I found it more natural for me to have the shutter do the Spot AF. Bottom line, even as a shutter AF shooter there are ways to minimize extra frames from pre-capture being on all the time.

Aug 24, 2024 at 07:57 AM

stanj
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p.3 #8 · p.3 #8 · R5II Precapture

Precapture will always give you 15 frames @ 30fps no matter what shutter you have.

Aug 24, 2024 at 11:11 AM

Imagemaster
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p.3 #9 · p.3 #9 · R5II Precapture

OM-1 MkII

With our Pro Capture Mode when you press the shutter button down halfway, it begins buffering a running series of photos at a maximum 120fps.

With increased memory in the camera, we’ve more than doubled the buffer size, jumping from 92* to an impressive 213 photos at 120 fps in RAW format.

Blackout-free sequential shooting. Now, in addition to the existing 25-120fps, we've added 12.5 fps and 16 fps for better shooting experience for static subjects.

Aug 24, 2024 at 11:29 AM

Alan Kefauver
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p.3 #10 · p.3 #10 · R5II Precapture

stanj wrote:
Precapture will always give you 15 frames @ 30fps no matter what shutter you have.

I believe this is incorrect. I set the frame rate to 20fps, and the shot max at 10 and I get 20 frames. 10 before and 10 after.

Aug 24, 2024 at 12:22 PM

stanj
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p.3 #11 · p.3 #11 · R5II Precapture

stanj wrote:
Precapture will always give you 15 frames @ 30fps no matter what shutter you have.

Alan Kefauver wrote:
I believe this is incorrect. I set the frame rate to 20fps, and the shot max at 10 and I get 20 frames. 10 before and 10 after.

I think this may have to do with your limiter. And I think we are both wrong

I just set the camera on slow (which in my case is 7.5fps), aimed it at a stopwatch, enabled pre-capture, allowed the buffer to fill, and then pressed as briefly as I can (at that frame rate I am confident to squeeze just one).

Here's the first and last frame. There's 2s difference (the stopwatch shows only one decimal, sorry.)

I confirmed I have frame rate set to 7.5 and 16 frames have been recorded (what's shown is frame #1 and #16).

Aug 24, 2024 at 01:07 PM

Mike Jacks0n
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p.3 #12 · p.3 #12 · R5II Precapture

It seems limiting, but in practice, 0.500 seconds is pretty much perfect. I wouldn't get caught up on not being able to adjust it. I did a similar test to StanJ when I got mine and got similar results (used different variables). On the flip side, I fully understand the complaint that 0.500 seconds might be too much, but I've found if it were set shorter, you REALLY have to be on the ball, or you'll miss shots. As it is, you can completely miss the shot but still get the shot. Or like me, realize you've missed it and still have time to tell yourself to shoot anyway (tough to break the habit of not shooting after the moment is done). IMO, this is the standout feature on this camera. Olympus and Panasonic users have had it really good for some years now, and now the rest of us are joining the club.

The bad news... I do find the AF can't quite keep up with this performance. Should be fine if you are already tracking something (at a steady pace/rate of acceleration), but for subjects like birds on a perch exploding in to action, it's a crap shoot especially if you are head on with a fast bird. Best to be positioned as close to horizontal as possible to elongate the depth of field and give the AF a buffer of depth of field. I'm finding the jump off a perch is almost always out of focus when its head on. Still playing with settings so I can't say with certainty yet, but I don't have terribly high hopes for a super strong hit rate off the perch.

Aug 25, 2024 at 06:41 PM

Mike Jacks0n
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p.3 #13 · p.3 #13 · R5II Precapture

Mike Jacks0n wrote:
Anyone else noticing this?

I noticed when I'm in the EVF, focusing (back button), using Manual mode, sometimes I can't change the shutter speed (with the front wheel) without letting go of the back button focus. Sometimes you just want to bump the exposure up or down but sometimes it forces you to stop what your doing and do it effectively with no other actions being performed (EVF use is still OK). For me its wasn't occurring every time, but I noticed it a few times.

Figured out how to reproduce this, and it has to be a bug.

While using Manual mode simply enable PRE cap, take a burst using PRE, continue to hold the AF ON button down, and try to change shutter speed or ISO while holding the AF ON. Or effectively, shoot a burst with PRE on and immediately try to change the shutter speed while still focusing.

Aug 31, 2024 at 11:25 PM

arbitrage
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p.3 #14 · p.3 #14 · R5II Precapture

I'm deleting this post as I'm not confident in my test anymore after viewing the images off the card.

Edited on Sep 01, 2024 at 08:36 PM · View previous versions

Sep 01, 2024 at 02:21 PM

alundeb
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p.3 #15 · p.3 #15 · R5II Precapture

Thanks to all for doing the tests! I am still confused, but I guess that is always the problem with time machines. Travelling back in time never sends you to the time you expect. What's next? Dinosaurs showing up in pre-capture?

Sep 01, 2024 at 03:24 PM

stanj
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p.3 #16 · p.3 #16 · R5II Precapture

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...Show more →

I respect you as a photographer, but your results clearly contradict my results

Sep 01, 2024 at 03:56 PM

lighthound
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p.3 #17 · p.3 #17 · R5II Precapture

stanj wrote:
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 think you misunderstood what he said. You both have confirmed 15 frames regardless of set fps.
At least that's what I understood from both of your reports.

This sounds like the perfect way to handle it. You want as many frames in that .5 seconds as you can get.

Sep 01, 2024 at 05:18 PM

stanj
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p.3 #18 · p.3 #18 · R5II Precapture

lighthound wrote:
I think you misunderstood what he said. You both have confirmed 15 frames regardless of set fps.

Interesting. I looked at The Results section that said it's 30fps for 0.5s regardless of set frame rate

Then again, I have the excuse that English is my 5th language so my comprehension (and certainly writing) is at times lacking

Sep 01, 2024 at 05:45 PM

EB-1
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p.3 #19 · p.3 #19 · R5II Precapture

alundeb wrote:
Thanks to all for doing the tests! I am still confused, but I guess that is always the problem with time machines. Travelling back in time never sends you to the time you expect. What's next? Dinosaurs showing up in pre-capture?

0.5 seconds don't help what I'm attempting to achieve. I cannot make the time to increase to a usable amount, but maybe there is some other setting. For now it's turned off. It should be more like the Omega 13.

EBH

Sep 01, 2024 at 06:40 PM

cpe1991
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p.3 #20 · p.3 #20 · R5II Precapture

EB-1 wrote:
0.5 seconds don't help what I'm attempting to achieve. I cannot make the time to increase to a usable amount, but maybe there is some other setting. For now it's turned off. It should be more like the Omega 13.

EBH

What are you trying to achieve?

Sep 01, 2024 at 07:04 PM

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