Canon EOS R5 Mark II: Firwmare v1.1.1 Release

I’m curious why there’s total silence about this fact here and on DPReview. By the way, it seems to have fixed that nasty Error 70 issue in Multiexposure mode that I used to encounter.
I didn't even realize there was a new firmware release, I was kind of relying on this thread for that but maybe I missed it or I'm following the wrong one.

But thanks to those who updated me!
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Mushrooms And Fungi Of Any Kind

Do you have any trouble with your tripod vibration?
Depends on the situation: I use a small travel tripod which is not the most stable. As You see in the "making of" pictures, I removed the center column to get closer to the floor. If I have the camera at the end of a fully extended macro rail vibration is of cause a problem. But I use the remote control and allways a delayed shutter of two seconds. And the Laowa lens is much smaller then the Canon MPE 65.

Now two stacks made with a MT 24 flash

R5m2 + RF100L
135 frames close to mfd
flash135.jpg

and 35 frames
Pilz 35 flash.jpg
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Powershot V1 shows Impressive Dynamic Range Results

Your central thesis that dynamic range is proportional to pixel density is a very common misconception. Dynamic range is proportional to sensor area, not pixel size (pixel density). This is made quite clear on the photonstophotos site in the Notes under the graph he plots of dynamic range vs sensor area. https://www.photonstophotos.net/Charts/PDR_Area_scatter.htm
"Notes:
Photographic Dynamic Range increases as sensor area increases.
This is because the Signal to Noise Ratio (SNR) increases roughly by the square root of area.
Therefore the x-axis on this chart is the square root of the sensor area.
Note that pixel size does not enter into this relationship.
"

The dynamic range of the V1 sensor is what you expect from that relationship. The V1 sensor 18.4mm x12.3mm = 226mm^2, the R7 22.3mm x 14.9mm = 332mm^2, and FF = 36mm x 24mm = 864mm^2. The photonstophotos plot of the dynamic ranges of the V1, R7 and R5 fits nicely to that pattern

Screenshot 2025-11-23 at 14.10.12.png
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Canon Lens Acronyms and Abbreviations

I'll repeat my comment from when dpreview did something similar (for lenses):

"USM" can mean several different things:

* Ring USM = Powerful Ultrasonic Motor, most useful when there's a fair bit of glass to move and you want to move it quickly, was pretty standard on most higher-end Canon lenses for a long time. Still used in RF lenses.

* Micro USM and Micro USM II = small and lower end USM motors, not much used now. The II is a shrunk version of the original.

* Nano USM = Linear Motor, the best current option on many higher-end lenses, two may be present, or can be combined with a VCM motor, or just used alone.
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Canon Lens Acronyms and Abbreviations

Canon Lens Acronyms and Abbreviations is a long list that spans generations of lens mounts, systems, and eras. These acronyms and abbreviations identify decades of lens evolution, from the manual film era to today's hybrid mirrorless systems. This ended up being a lot longer than I thought, partly because I decided to add in Cinema.. […]

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Dogs

One of my neighbors asked me to take photos of her dog... Now it's my favorite dog in the neighborhood! So cute little Doberman (I didn't know Dobermans could be that cute!!!). In the last two photos - he got in some deep foot-print and like a real Sherlock Holmes investigated who put that trap for him :D!

DSC_3120.jpgDSC_3136.jpgDSC_3287.jpgDSC_3296.jpgDSC_3312.jpgDSC_3313.jpg
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BIRD IN FLIGHT ONLY -- share your BIF photos here

In October, watching a "suit" of Mallards for several minutes, they suddenly became a flush!.
Luckily I finally heeded AlanF's advice to shoot the 600mm minus the 1.4TC. This gave the R5 a fighting chance against my erratic panning.View attachment 226878View attachment 226879View attachment 226880View attachment 226881
I'm looking forward to more opportunities to capture BIF.
And thanks to online-field-guide.com for the proper Mallard Group terminology.
Time to time Alan is very helpful - actually always :)!
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