topic Re: Canon 5dsr shutter lag / delay in EOS DSLR & Mirrorless Cameras

Canon 5dsr shutter lag / delay

upsidetriangle — Sat, 30 Aug 2025 22:07:46 GMT

So I picked up a Canon 5dsr to be used only for fireworks displays and im having an odd problem.

Im in bule mode all manual setting and lens in manual focus.

Im getting shutter lag / delay on the second and all subsequent images until I let the buffer clear.

When I go to take an image straight after the last image you can hold the shutter down for maybe 0.25 - 0.5s before the camera will start to take the image.

The buffer is not full but it is transferring. This is with a slow SD card a Lexar 1000X 128gb but I don’t think this is the problem as the buffer is not full.

The lens im using is a Sigma 12-24mm f4.5-5.6 DG HSM.

I did some testing on my R6M2, 90D and 1100D and all work as i would expect letting let take photos as quickly as i would like until the buffer is full.

Re: Canon 5dsr shutter lag / delay

jrhoffman75 — Sun, 31 Aug 2025 00:08:25 GMT

50 megapixels and slow card could be your problem.

Re: Canon 5dsr shutter lag / delay

wq9nsc — Sun, 31 Aug 2025 00:33:52 GMT

As John noted, you need a fast card for this camera given the sensor size.

But I wonder if mirror lockup or some other function is set.

If this was a previously owned body (likely since it has been our of production for some time), use tools menu tab 4 to clear all camera settings back to factory AND also go to the last tab of the custom functions screen and clear all custom functions. These are two separate items and both must be done to reset any previous user settings.

I don't shoot a lot of photos with my 5DS R bodies because I use my 1DX III bodies for sports but I have shot quite a few photos with my 5DS and 5DS R bodies in high speed drive and there was no slow down in multiple image bursts because I never ran into the 12-18 shot buffer limit.

It would be unusual behavior but if you are using servo AF with moving subjects then it can be fine tuned where you move the "bias" between shutter release and image focus; I leave all of my bodies set biased to focus since poorly focused photos are of no use to me. This adjustment is found in the second set of menu items under the AF2 tab. But unless you are using a slow focusing lens with a moving object, this sort of delay shouldn't occur under these conditions.

Rodger

Re: Canon 5dsr shutter lag / delay

upsidetriangle — Sun, 31 Aug 2025 11:10:47 GMT

@jrhoffman75 wrote:
50 megapixels and slow card could be your problem.

The Lexar 1000X 128gb should be for them fast enough for the 5Dsr as it only supports UHS-I SD cands. I put in one of my Kingston Canvas React Plus 128gb cards a good UHS-II card with 300MB/s R, 260MB/s W. same behavior.

Also change from raw to jpeg in diffrent sizes and not change.

Re: Canon 5dsr shutter lag / delay

upsidetriangle — Sun, 31 Aug 2025 11:05:09 GMT

@wq9nsc wrote:
As John noted, you need a fast card for this camera given the sensor size.
But I wonder if mirror lockup or some other function is set.
If this was a previously owned body (likely since it has been our of production for some time), use tools menu tab 4 to clear all camera settings back to factory AND also go to the last tab of the custom functions screen and clear all custom functions. These are two separate items and both must be done to reset any previous user settings.
I don't shoot a lot of photos with my 5DS R bodies because I use my 1DX III bodies for sports but I have shot quite a few photos with my 5DS and 5DS R bodies in high speed drive and there was no slow down in multiple image bursts because I never ran into the 12-18 shot buffer limit.
It would be unusual behavior but if you are using servo AF with moving subjects then it can be fine tuned where you move the "bias" between shutter release and image focus; I leave all of my bodies set biased to focus since poorly focused photos are of no use to me. This adjustment is found in the second set of menu items under the AF2 tab. But unless you are using a slow focusing lens with a moving object, this sort of delay shouldn't occur under these conditions.
Rodger

A factory reset and custom functions clear has already been done is did not change the behavior.

I tested high speed connection works just find.

I have the lens in manual focus im in single short and have ISO 100 and aperture f8 set.

Re: Canon 5dsr shutter lag / delay

Waddizzle — Sun, 31 Aug 2025 11:55:37 GMT

What storage format are you using, RAW or JPG? Do you post process photos?

What NR, noise reduction, settings are enabled, if any?Try disabling them.

Same for any lens or image correction settings. If any are enabled, try disabling them.

Re: Canon 5dsr shutter lag / delay

upsidetriangle — Sun, 31 Aug 2025 19:54:45 GMT

@Waddizzle wrote:
What storage format are you using, RAW or JPG? Do you post process photos?
What NR, noise reduction, settings are enabled, if any?Try disabling them.
Same for any lens or image correction settings. If any are enabled, try disabling them.

Im in RAW and there will be some editing.

NR, noise reduction, ect all disabled no change.

Re: Canon 5dsr shutter lag / delay

Waddizzle — Sun, 31 Aug 2025 20:18:03 GMT

“ Im getting shutter lag / delay on the second and all subsequent images until I let the buffer clear. “

I just noticed this comment. Once you fill the buffer, not being able to take additional photos until the buffer clears is normal behavior.

Re: Canon 5dsr shutter lag / delay

upsidetriangle — Sun, 31 Aug 2025 21:34:04 GMT

Correct but the buffer is not full on the second image so why would i get the lag / delay on the second image.

Re: Canon 5dsr shutter lag / delay

Waddizzle — Sun, 31 Aug 2025 22:06:24 GMT

“ Correct but the buffer is not full on the second image so why would i get the lag / delay on the second image. “

You clearly stated that the buffer is full. While the camera has two card slots, there’s only one buffer.

Re: Canon 5dsr shutter lag / delay

Waddizzle — Sun, 31 Aug 2025 22:13:22 GMT

How long is your shutter speed in Bulb mode?

How are you firing the shutter? By hand? Intervalometer connected via cable? Wireless app or device?

Please describe how I could reproduce the issue. Thanks, in advance.

Re: Canon 5dsr shutter lag / delay

upsidetriangle — Sun, 31 Aug 2025 23:12:09 GMT

Turn the camera on.
In bule mode all settings manually set and lens in manual focus. (buffer empty)
Press and hold shutter no lag / delay (Remaining butter for 12 images).
Releases shutter. (Remaining butter for 11 images) then Immediately press and hold shutter I get lag / delay 0.25 - 0.5s before the camera will start to take the image. (Remaining butter for 11 images).

If I take more images I get the same lag on each images until let the buffer clear. The first image (With a empty buffer) never has any lag / delay.

Im using a remote shutter wired (using the shutter on the body make no different).

This one https://www.amazon.co.uk/dp/B09LZ8RLMD?ref=ppx_yo2ov_dt_b_fed_asin_title

Shutter speed will very a lot 1s to 5s would be typical.

15 years or so of using Canon DSLRs the only time I have run in to a delay in the camera starting to take an image is 1. When the buffer is full 2. hunting for focus. never would apply hire.

Re: Canon 5dsr shutter lag / delay

Waddizzle — Mon, 01 Sep 2025 00:45:07 GMT

“ If I take more images I get the same lag on each images until let the buffer clear. The first image (With a empty buffer) never has any lag / delay.

Im using a remote shutter wired (using the shutter on the body make no different).

This one [ third party link DELETED ]

Shutter speed will vary a lot 1s to 5s would be typical. “
———————-

Uh oh. Links to third party products for sale are against forum rules. “These are not the droids you’re looking for.” 👋 You should be good.

Thanks, for the quick response. If your shutter speeds are well below 30s, then why use bulb mode and a remote. Did you know….?

It seems like you are capturing several “long” exposures back to back. Did you can use the built-in intervalometer to do the same thing?

You can set up the camera to automatically capture a series of images at the same exposure, or as a series of bracketed exposures.

Here’s how. Refer to the User Guide on how to set up a series of exposures at either fixed intervals or AEB. I cannot go into details just yet because I don’t know what your objective is.

Any Canon DSLR or MILC body with an internal intervalometer or AEB is capable of doing this, including Rebel Series bodies.

Once you have the exposure interval or AEB set, disable AF. I assume that you want all captures to have the same focus. Set the shutter mode to the internal 2/10 second internal timer. Set drive mode to continuous. 👍.

Now press the shutter once to initiate the shutter delay timer. 👍

The camera should now automatically capture the entire sequence of exposures. 💯

Re: Canon 5dsr shutter lag / delay

upsidetriangle — Mon, 01 Sep 2025 17:17:08 GMT

@Waddizzle wrote:
“ If I take more images I get the same lag on each images until let the buffer clear. The first image (With a empty buffer) never has any lag / delay.
Im using a remote shutter wired (using the shutter on the body make no different).
This one [ third party link DELETED ]
Shutter speed will vary a lot 1s to 5s would be typical. “
———————-
Uh oh. Links to third party products for sale are against forum rules. “These are not the droids you’re looking for.” 👋 You should be good.
Thanks, for the quick response. If your shutter speeds are well below 30s, then why use bulb mode and a remote. Did you know….?
It seems like you are capturing several “long” exposures back to back. Did you can use the built-in intervalometer to do the same thing?
You can set up the camera to automatically capture a series of images at the same exposure, or as a series of bracketed exposures.
Here’s how. Refer to the User Guide on how to set up a series of exposures at either fixed intervals or AEB. I cannot go into details just yet because I don’t know what your objective is.
Any Canon DSLR or MILC body with an internal intervalometer or AEB is capable of doing this, including Rebel Series bodies.
Once you have the exposure interval or AEB set, disable AF. I assume that you want all captures to have the same focus. Set the shutter mode to the internal 2/10 second internal timer. Set drive mode to continuous. 👍.
Now press the shutter once to initiate the shutter delay timer. 👍
The camera should now automatically capture the entire sequence of exposures. 💯

Thanks, for the quick response. If your shutter speeds are well below 30s, then why use bulb mode and a remote. Did you know….?

When I press the shutter I don’t know what shutter speed i need. I what to be able to change the shutter speed on the fly a series of photos may look some thing like this 1.7s, 5.1s, 2.5s, 0.8s, 8.1s ext. im timing this all the fireworks displays as it happens. And im using a remote shutter so to not move the camera also it can be could so hands in pocket or wearing gloves.

It seems like you are capturing several “long” exposures back to back. Did you can use the built-in intervalometer to do the same thing?

Yes im where of intervalometer and I have used them. But they remove the ability to make change on the fly

Here’s how. Refer to the User Guide on how to set up a series of exposures at either fixed intervals or AEB. I cannot go into details just yet because I don’t know what your objective is.

Any Canon DSLR or MILC body with an internal intervalometer or AEB is capable of doing this, including Rebel Series bodies.

Now press the shutter once to initiate the shutter delay timer.

The camera should now automatically capture the entire sequence of exposures.

I use this when im making timelapse or doing astrophotography

Here is some of my photos from a recent display https://www.flickr.com/photos/96470577@N02/albums/72177720328120806/

Re: Canon 5dsr shutter lag / delay

Waddizzle — Mon, 01 Sep 2025 17:46:10 GMT

I fail to see a need to vary the exposures when capturing fireworks.🎆 Once I have a good setting for available lighting. I am set for the session.