-= Canon EOS R7 owners unite! Post photos and discuss.

AntonLargiader wrote in post #19550040
When and how is shutter shock affecting you folks with the R7? At what shutter speed? Can anyone post their own examples?

It is something I noticed a long time ago. In EFCS and H+, the first shot is sharp and subsequent shots are slightly blurred. The blur is not great and it varies. I don't have the evidence any more because the affected shots were culled long ago.

My reason for burst shooting of static subjects is so I can pick the sharpest focus. Focus can vary in much of the shooting that I do. But if shutter shock spoils the shots, there is no point.

In H, there appears to be enough time for vibration damping that the blurring is much reduced.

When I first noticed the effect, I tested different shutter speeds to better define the issue. I found it happened at all shutter speeds that I commonly use (which are 1/500-1/1600 roughly). I would have researched it more, but quickly discovered that it becomes a virtual non-issue at the slower burst speed, and that speed is all I need.

downhillonwater wrote in post #19549893
Have you seen this documented by Canon for the R7? While true for the R5, everything I've seen says the R7 is 14 bit always... e.g.

https://www.canon-europe.com …as/eos-r7/specifications/

Also I don't think I have seen my file sizes change based upon shutter speed.

After getting my R7 I did find some searching and found information but that was a while ago. I have been searching the web. Some stated that Canon just stopped posting bit rate changes. On other sites who have members how know now to measured it and stated in e shutter it's 12 bit. I wanted to find something from Canon.

It's also worth noting that, on all Canon EOS DSLRs and mirrorless cameras except for the EOS R3, the maximum bit depth drops from 14-bit with mechanical shutter to 12-bit with electronic shutter – meaning that when you shoot RAW using the electronic shutter, the camera is saving images with a slightly narrower range of colours and tones. This doesn't apply when you shoot JPEGs or HEIF files, because these file types already have a lower bit depth.

The R7 came out a year after the R3 but if you scroll down the R7 is on the list.

https://www.canon-europe.com …ic-vs-mechanical-shutter/

If you click on the link I posted scroll down to which cameras have e vs m shutters. Click on the R7 and then Specifications. That leads to the link downhillonwater provided. The article I linked to has either not been updated or Canon is not posting all the information. It has not been easy to find more informartion about this.

Pippan wrote in post #19550033
I'm sending it to the retailer, who will send it to Canon. Retailer seemed happy that it would be a warranty job.

Hope it works out OK pippin;; downtime is a bit of a drag for you.
Do post any feedback on the fix.

Archibald wrote in post #19550062
It is something I noticed a long time ago. In EFCS and H+, the first shot is sharp and subsequent shots are slightly blurred. The blur is not great and it varies. I don't have the evidence any more because the affected shots were culled long ago.

My reason for burst shooting of static subjects is so I can pick the sharpest focus. Focus can vary in much of the shooting that I do. But if shutter shock spoils the shots, there is no point.

In H, there appears to be enough time for vibration damping that the blurring is much reduced.

When I first noticed the effect, I tested different shutter speeds to better define the issue. I found it happened at all shutter speeds that I commonly use (which are 1/500-1/1600 roughly). I would have researched it more, but quickly discovered that it becomes a virtual non-issue at the slower burst speed, and that speed is all I need.

I see it in H too, but perhaps my technique is not so good.

I burst shoot for static too but at L (4 FPS).

With the R7+100-500 combo I find little focus point variation under ideal conditions, but when there is movement, head turning, eye blinking etc it helps.

But normally on ES so just cycles on memory chips and batteries in terms of wear-n-tear.

digital paradise wrote in post #19550157
After getting my R7 I did find some searching and found information but that was a while ago. I have been searching the web. Some stated that Canon just stopped posting bit rate changes. On other sites who have members how know now to measured it and stated in e shutter it's 12 bit. I wanted to find something from Canon.

It's also worth noting that, on all Canon EOS DSLRs and mirrorless cameras except for the EOS R3, the maximum bit depth drops from 14-bit with mechanical shutter to 12-bit with electronic shutter – meaning that when you shoot RAW using the electronic shutter, the camera is saving images with a slightly narrower range of colours and tones. This doesn't apply when you shoot JPEGs or HEIF files, because these file types already have a lower bit depth.

The R7 came out a year after the R3 but if you scroll down the R7 is on the list.

https://www.canon-europe.com …ic-vs-mechanical-shutter/

To be contrary that is just a list of cameras with ES, but your conclusions are probably correct.

Why this is an engineering sense would be interesting to have clarified.

Possibly if you drop 2LSB you can suck the data out faster and reduce rolling shutter (hypothesis).

If so one has to wonder if the rolling shutter could be improved further by dropping more bits as a special ES mode.

JayLT wrote in post #19549915

IMAGE LINK: https://flic.kr/p/2oUY​CY6 R7__5595-Enhanced-NR-08-06 by Jay Cline, on Flickr

IMAGE LINK: https://flic.kr/p/2oV1​KR2 R7__1250-Enhanced-NR-08-05 by Jay Cline, on Flickr

IMAGE LINK: https://flic.kr/p/2oUU​iF7 R7__1286-Enhanced-NR-08-08 by Jay Cline, on Flickr

IMAGE LINK: https://flic.kr/p/2oUN​YiY R7__8890-Enhanced-NR-08-07 by Jay Cline, on Flickr

Beautiful, I especially like that last one.

digital paradise wrote in post #19549721
I'm not a big fan of e shutter but I don't like how loud the mechanical shutter is on the R7 even in EFCS. I don't l know if causes any shutter shock. You can feel in your hands. I've never tested it for that.

I'd sure like to see this.

https://www.youtube.co​m/watch?v=zBaxtfjbFqI

Interesting that they used the terms mirror shock and shutter shock interchangeably. Some of the images are irrelevant to the subject at hand, like too slow a shutter speed for the moving subject. That has nothing to do with either shutter shock or mirror shock.

Lester Wareham wrote in post #19550175
To be contrary that is just a list of cameras with ES, but your conclusions are probably correct.

Why this is an engineering sense would be interesting to have clarified.

Possibly if you drop 2LSB you can suck the data out faster and reduce rolling shutter (hypothesis).

If so one has to wonder if the rolling shutter could be improved further by dropping more bits as a special ES mode.

I agree it is just a list. I still think it is important to update if it says all cameras expect the R3. At the bottom of that page it says 2023 but that could just be an automated task. The R7 may very be 14 bit but having two different explanations leaves a little doubt to what is accurate.

Reflecting on this if I was running Canon I might opt to leave out some info. Since it appears there is not a significant difference between the two bit rates then just not state it. People are into the specs, dynamic range, etc. They read e shutter drops to 12 but Sony cameras don't. Just a wild guess with no backing on that one.

McNeil River last week. R7 with EF 100-400 L ISII. The only editing was the "auto" button in Apple Photos.

digital paradise wrote in post #19550157
The R7 came out a year after the R3 but if you scroll down the R7 is on the list.

https://www.canon-europe.com …ic-vs-mechanical-shutter/

That is a well written description of shutter modes. Thanks.

digital paradise wrote in post #19550276
I agree it is just a list. I still think it is important to update if it says all cameras expect the R3. At the bottom of that page it says 2023 but that could just be an automated task. The R7 may very be 14 bit but having two different explanations leaves a little doubt to what is accurate.

Reflecting on this if I was running Canon I might opt to leave out some info. Since it appears there is not a significant difference between the two bit rates then just not state it. People are into the specs, dynamic range, etc. They read e shutter drops to 12 but Sony cameras don't. Just a wild guess with no backing on that one.

I think you might need to devise a test.

Lester Wareham wrote in post #19550309
I think you might need to devise a test.

I don't have the skills. I have been looking for more of these tests.

https://www.dpreview.c​om/forums/post/6636485​6

Northroad wrote in post #19550282
McNeil River last week. R7 with EF 100-400 L ISII. The only editing was the "auto" button in Apple Photos.

Hosted photo: posted by Northroad in
./showthread.php?p=195​50282&i=i4901628
forum: Canon Digital Cameras

Hosted photo: posted by Northroad in
./showthread.php?p=195​50282&i=i153128728
forum: Canon Digital Cameras

The fish, the bear and the river=CLASSIC. Well done.