Will T
Leading Member
Read my signature.
This is what I do for a living. “Engineer “
I am done.
Feel free to argue facts among yourselves!
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R3 questions
- Thread starter dtgq
- Start date
This is what I do for a living. “Engineer “
I am done.
Feel free to argue facts among yourselves!
R2D2
Forum Pro
Ephemeris
Veteran Member
There are many types of engineers of course.
I happened to take this measurement for the R5 grip as I was characterising the system. Whilst I could have gone further the equipment for what I was testing enables me to measure uWatts - more specifically the real part only. Current was measured at a uA scale (which is the point of what I was doing) and voltage was monitored in a similar way in uV but also I measured a 10MHz wide noise voltage which was around 10uVRMS.
The grip across a 0-40C range didn't affect measurements, although one can inject noise by moving it, pressing buttons, playing with the switch.
The upshot is I have high confidence it converts less than a uW of battery power into heat.
If your suggesting that the grip can turn enough energy into heat to make the capacity of both battery systems we are comparing to normalise at the same 0.1C discharge at 20C then that would be around 7%. Do you not feel that is rather excessive? 2 Watts every hour?
P.s. sorry I seemed to have missed how the signature relates to an engineering profession? Probably obvious but I've missed it sorry.
Last edited:
Ephemeris
Veteran Member
I would almost always agree with you unless your one of my ex number theorest colleagues
The problem with the capacity data is it's stated at a discharge current / ratio which isn't what the camera will demand. However, that aside it's highly likely the 2 x battery in a grip > capacity than the r3 battery
How long each last recording 4k60, or sat blitzing 20fps with both screens on is another thing.
I never measured the power profile of the R3 when we had one for a really short time. I'm guessing the r52 is capable of using more power but just a wild thought.
Maybe Canon will go all solid state batteries with a Hydrogen back up tank.
I guess there may be a teardown of the R3 battery somewhere? Assume there are 3rd party ones?
Ephemeris
Veteran Member
I would almost always agree with you unless your one of my ex number theorest colleagues
The problem with the capacity data is it's stated at a discharge current / ratio which isn't what the camera will demand. However, that aside it's highly likely the 2 x battery in a grip > capacity than the r3 battery
How long each last recording 4k60, or sat blitzing 20fps with both screens on is another thing.
I never measured the power profile of the R3 when we had one for a really short time. I'm guessing the r52 is capable of using more power but just a wild thought.
Maybe Canon will go all solid state batteries with a Hydrogen back up tank.
I guess there may be a teardown of the R3 battery somewhere? Assume there are 3rd party ones?
R2D2
Forum Pro
Yes, I suspect that DIGIC Accelerator uses a fair amount of juice!I would almost always agree with you unless your one of my ex number theorest colleagues
The problem with the capacity data is it's stated at a discharge current / ratio which isn't what the camera will demand. However, that aside it's highly likely the 2 x battery in a grip > capacity than the r3 battery
How long each last recording 4k60, or sat blitzing 20fps with both screens on is another thing.
I never measured the power profile of the R3 when we had one for a really short time. I'm guessing the r52 is capable of using more power but just a wild thought.
Maybe Canon will go all solid state batteries with a Hydrogen back up tank.
I guess there may be a teardown of the R3 battery somewhere? Assume there are 3rd party ones?
I'll be shooting an event outside this weekend so I hope there isn't a power issue with my R5ii. I've got hand warmers just in case!
R2
Ephemeris
Veteran Member
I take 5 batteries, a usb charger, and a power bank.Yes, I suspect that DIGIC Accelerator uses a fair amount of juice!I would almost always agree with you unless your one of my ex number theorest colleagues
The problem with the capacity data is it's stated at a discharge current / ratio which isn't what the camera will demand. However, that aside it's highly likely the 2 x battery in a grip > capacity than the r3 battery
How long each last recording 4k60, or sat blitzing 20fps with both screens on is another thing.
I never measured the power profile of the R3 when we had one for a really short time. I'm guessing the r52 is capable of using more power but just a wild thought.
Maybe Canon will go all solid state batteries with a Hydrogen back up tank.
I guess there may be a teardown of the R3 battery somewhere? Assume there are 3rd party ones?
I'll be shooting an event outside this weekend so I hope there isn't a power issue with my R5ii. I've got hand warmers just in case!
R2
When I was on my trip the temp was 12-18C, which felt like bliss from the UK at the time. I do have some power saving on but I've always got both screens, AF servo etc etc.. screens up to bright. The days were not so long this time of year, leaving circa 0830 and returning circa 1930. Taking trains out of that I guess each day was 9hrs of shooting, walking type of thing. 2 batteries just about lasted.
My last tractor pull event was 8am to gone midnight and about 4C. Never stopped shooting video and stills. Just about managed on 4 batteries but did swap out for the two that were charging near the end just in case. Perhaps that's a worse case. 4 batteries per half day, unless one is maybe doing solid video with AF, IS, screens on, HDMI, WiFi on etc etc. (Oh for my above I had WiFi / BT on the whole time for GPS from my phone).
Good look with the shoot fella. Get them gloves and hats out. Carbon hand warmers are decent, USB are my normal go to. USB body warmer a good send (I don't have much fat on me).
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