I Have an R5 MK II. AMA.

[Nrbelex]

• fridu scan wrote:

Thank you for the files! I ordered the R5II already, I hope I will get next week. I downloaded some files, in my opinion the grain is a bit more then in R5 and the 24-70mm 2.8 has also some green chromatische aperationen, in my opinion, it could be a bit better.

Are the files from NY central station in EL shutter?

Thank you and all the best.

 

[John Sheehy]

Not with a fast lens wide open, I hope. Only F-numbers well above 2.8 are guaranteed to be "normal", as cameras compensate for known microlens/photosite losses at very low f-numbers by pushing the raw data in the raw file, so that when converted, f/1.4 at 1/100 is the same brightness as f/2.8 at 1/25, but the noise is scaled up and highlights are clipped away, losing raw DR.

Really? Not something I need John. Fastest we have is f2.

Any effects or implications we should be aware of?

I made a type, should have said not something I new*

Sounds like some minor change at F2. I suppose if our ISO is low we may only be concerned about the highlights but is this occuring at higher ISO where f2 or less we may use to get access to more light?

There is loss of light, regardless of what the camera does to deal with it - if it were a non-communicating lens, no DR would be lost and the capture would just be 0.21 stops weaker. I suppose it is not exactly as if the pupil were a little smaller, per se, but more like the outer part of the aperture has a little neutral density. So, you will never get the light at f/2 and 1/100 that you would get at f/2.8 and 1/50. You still get the most light possible by opening all the way up, though, with an f/2 lens.

What I measured is what the camera assumes is the loss, by the way it scaled the raw data. This is different than actually measuring the light captured by the sensor, which is probably more complex and varies also as a function of distance from the center of the image circle.

This thread is approaching 150, so if you have further inquiry on this, please start a new thread.

 

[Marximus]

When you're shooting high-speed burst (mechanical), does the frame rate drop when the battery goes below 40%?

 

[Tazz93]

In pre-continuous shooting at 30 frames/second in Raw, is there a limit set by the camera on how long you can keep the shutter button half-pressed before releasing it?

Does pre-continuous shooting make the camera heat up enough to notice - e.g. if you held the shutter button half pressed for five minutes (in one shot or spread over several shots)?

Since then I've had one opportunity to test preburst, shooting many hundreds of CRaws, for about 5 mins at around 80° ambient temperature and I didn't have any issues. Only on that hotter day with lots of shooting did I see the warning.

I think this is what Andy wanted to know. Shooting with Pre-Shooting enabled, on a warm day, will start the warning timer. Not sure if it would get warm enough to worry about, but will be on your mind. Personally, I don't think any of this portion of the conversation was about video, so we should be good. Thanks.

For context and comparison, the (updated) Nikon Z8 manual states “The length of time the camera will continue to buffer frames before cancelling shooting during the Pre-Release Capture phase of high-speed frame capture + has been increased from 30 to 300 seconds.”

My guess is that the Nikon limit is there because of heat issues. It seemed possible that the R5ii would have more of a problem with heat because instead of 20fps JPEG pre-capture it is capable of 30fps Raw pre-capture. R5ii pre-capture needs a battery capable of delivering 6 amps: if it actually needs 6A the camera would heat up very quickly (and the battery would only last just over 20 minutes). I’m sure at some point somebody will measure the current requirements of the various R5ii modes to find out exactly why it needs a battery capable of delivering 6A.

6A seems reasonable (if not a little conservative for Li-Ion batteries), but I sincerely doubt the camera is doing anything that requires that for more than a few seconds. I'm curious to see the draws, but not enough to fab up a rig to measure it.

 

[Nrbelex]

When you're shooting high-speed burst (mechanical), does the frame rate drop when the battery goes below 40%?

Haven't been in this scenario yet. Will report back if I experience this.

 

[Nrbelex]

A few final thoughts before everyone starts receiving their bodies:

• The blur detection feature hasn't been super effective for me. I tried using the "standard" and "high" detection levels, but I the camera didn't seem to detect much blur, even when it was certainly there. I'm still experimenting here.
• In playback of images, I have the magnification set to show the actual size from the focus point, but in many cases it doesn't seem to zoom into the focus point. Unclear if this is a bug or if the camera thinks a different focus point was used than it seemed.
• The 30 fps shooting mode seems to work with the EF 24-70 f/2.8L (v1). This should be good news for those hoping to adapt old EF glass.
• The deletion menu (when hitting the trash can button during playback) has an option to "Erase scene including image" to erase the images captured as part of a drive burst. It looks like this was in prior Canon cameras (at least the R3), but it's a huge help in avoiding coming home with way too many rejects.
• Canon Camera Connect on Android doesn't work yet, so I haven't had a chance to test it yet.
• I tried using the Action Priority mode for volleyball, but I was at the rear of the action, using a pretty wide lens, and it was pretty dark, so it didn't work very well. Looking forward to more experimenting. Even at ISO 12800, the images are decent after going through ACR's AI denoise (which takes much longer with the R5 MKII files than 5D MKIII files). Here's an example:

R5 MK II, ISO 12800, ACR AI denoise

• There's a message I can't quite figure out when entering image playback mode:

This is a picture, not a movie... there are no movies on this card.

Any thoughts on what that's supposed to mean? Pressing "Mode" doesn't seem to do anything.

Hope everyone gets their orders soon!

--

Brett Weinstein

Explore Brett Weinstein’s 1,398 photos on Flickr!

flickr.com

 

[Nrbelex]

• In playback of images, I have the magnification set to show the actual size from the focus point, but in many cases it doesn't seem to zoom into the focus point. Unclear if this is a bug or if the camera thinks a different focus point was used than it seemed.

Upon further experimentation, this seems to be by design. I shoot using back button autofocus, and sometimes after I've achieved focus I press the shutter without having autofocus continuously locked on. In those cases, the camera doesn't know what I was focusing on, and it doesn't seem to revert to the last autofocus point used, so it zooms straight into the top left corner.

 

[Nrbelex]

• Canon Camera Connect on Android doesn't work yet, so I haven't had a chance to test it yet.

Canon released a new version of Camera Connect (3.2.11.34) for Android this evening that adds support for the R5 MKII (and/or enabled something on the server side). I couldn't get the camera to successfully connect to my phone via Bluetooth even though both devices could see one another, but maybe that's because my phone is a somewhat older Pixel 5. I managed to connect via Wi-Fi, but the connection was not great, there aren't a ton of useful features, and the camera appeared to get a bit bogged down trying to constantly connect/reconnect—menus loaded slowly or not at all while the connection was being established or reconnected. I'm not desperate for these features and I don't feel like draining more from the battery, so I've disabled all networking and connections for now.

 

[Zeee]

• Canon Camera Connect on Android doesn't work yet, so I haven't had a chance to test it yet.

Canon released a new version of Camera Connect (3.2.11.34) for Android this evening that adds support for the R5 MKII (and/or enabled something on the server side). I couldn't get the camera to successfully connect to my phone via Bluetooth even though both devices could see one another, but maybe that's because my phone is a somewhat older Pixel 5. I managed to connect via Wi-Fi, but the connection was not great, there aren't a ton of useful features, and the camera appeared to get a bit bogged down trying to constantly connect/reconnect—menus loaded slowly or not at all while the connection was being established or reconnected. I'm not desperate for these features and I don't feel like draining more from the battery, so I've disabled all networking and connections for now.

Interesting there has been no DPP update yet.

 

[J A C S]

• Canon Camera Connect on Android doesn't work yet, so I haven't had a chance to test it yet.

Canon released a new version of Camera Connect (3.2.11.34) for Android this evening that adds support for the R5 MKII (and/or enabled something on the server side). I couldn't get the camera to successfully connect to my phone via Bluetooth even though both devices could see one another, but maybe that's because my phone is a somewhat older Pixel 5. I managed to connect via Wi-Fi, but the connection was not great, there aren't a ton of useful features, and the camera appeared to get a bit bogged down trying to constantly connect/reconnect—menus loaded slowly or not at all while the connection was being established or reconnected. I'm not desperate for these features and I don't feel like draining more from the battery, so I've disabled all networking and connections for now.

Interesting there has been no DPP update yet.

There is a link here:

Canon EOS R5 Mark II user feedback and discussion | Canon Rumors - Your best source for Canon rumors, leaks and gossip