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Rumors => EOS Bodies => Topic started by: KubaN on November 28, 2012, 03:03:54 PM

Title: 5D3 continuous shooting speed
Post by: KubaN on November 28, 2012, 03:03:54 PM
Hello!

I have a kind of problem connected with continuous shooting mode speed in my 5d3.

When the battery level is over 50%, everything seems to be OK, so 6 fps.
But the problem starts, when it goes under 50%, so beginning from 49%.  Then the shooting speed reduces to 3 fps without a reason.

I should add, that I'm working without battery grip, and the CF card is not the problem, because it's fast and, what is more, the shooting speed would probably reduce also over 50% of battery, if the problem is connected with memory card.

My 5d3 is not the only one that slows down under 50%, my friends 5d3 also behaves the same way. He bought the camera at the same time as I, in the same store, so our SNs are simillar. It's very annoying, especially when shooting sports, so we often change the battery for another one, when it goes under 50%...

Does anybody have the same problem with 5d3?

Thanks.
Title: Re: 5D3 continuous shooting speed
Post by: ishdakuteb on November 28, 2012, 03:38:19 PM
very interesting... will find out this weekend.  however, canon please fix this problem as as if it is the case...
Title: Re: 5D3 continuous shooting speed
Post by: can0nfan2379 on November 28, 2012, 03:43:15 PM
This happens with my 5D3 also......not sure exactly at what battery level the frame rate drops but yes it does drop when the battery power is depleted.  Not sure if this is how it is supposed to behave or not but I don't every recall my 7D ever dropping under 8 fps even when I only had 10% battery power left.  Right now I'm running the 5D3 gripped but I haven't played with the continuous shooting speed at low power with 2 battery packs in place yet.  Will let you know if the same behaviour is seen with a grip.

I'd have to check the manual, there might be something in there on continuous shooting rate and battery level.

Title: Re: 5D3 continuous shooting speed
Post by: can0nfan2379 on November 28, 2012, 04:05:04 PM
pg 113 in the 5D3 Manual:


"When the battery level is low, continuous shooting speed may become slower"

They don't say how low or how slow but when I first got my 5D3 and the battery was fairly empty and tried High-speed continuous it was definitely not 6fps.

Still, I'm quite please with the autofocus and the frame rate when it is actually shooting at 6fps.  With my 7D and 8 fps, I always found if conditions weren't perfect, about 50% of the photos would not be critically sharp when viewed at 100% pixel peeping.  With the lower frame rate but better autofocus, I still find the 5D3 gives me more keepers.

Title: Re: 5D3 continuous shooting speed
Post by: bchernicoff on November 28, 2012, 04:13:40 PM
I think this is happening with my non-Canon battery even when full. I bought it strictly as a backup and have only really used it for the first time last weekend. It was fully charged, but the camera flashes the low-battery indicator.
Title: Re: 5D3 continuous shooting speed
Post by: KubaN on November 28, 2012, 04:28:46 PM
Ah, I forgot to mention, that we are using an original C battery. I realize, that the shooting speed may decrease when battery level is low, but I thought , that this is going to happen around 9% when low batt sign blinking is enabled... I'd never expect it to happen around 50%!

When realized that this is happening I called to Canon. They really have no idea that this can happen, and a sweet-voiced C girl told me, that if Canon knows about it, they will probably fix it in next firmware.
Title: Re: 5D3 continuous shooting speed
Post by: bchernicoff on November 28, 2012, 04:33:23 PM
I'll go home tonight and fully-charge both batteries and do a back to back comparison to test the theory that it affects non-Canon batteries.
Title: Re: 5D3 continuous shooting speed
Post by: awinphoto on November 28, 2012, 05:20:58 PM
I dont know how much this applies, but I used to work in a studio that was rented to photographers and we rented gear to those photographers... We were always taught that even when the charger shows 100%, charge it for another 15-30 minutes as the batteries when they read full, really were around 90ish percent...  Now with the cameras and how they give you the "exact" percentage, i'm not sure if the battery really is lower than you realize or it's reporting...  But anyways, maybe that's a side effect of having a "fast" FPS with only 1 digic... 
Title: Re: 5D3 continuous shooting speed
Post by: bchernicoff on November 28, 2012, 05:35:24 PM
  But anyways, maybe that's a side effect of having a "fast" FPS with only 1 digic...

I would think you have it backwards... two digic would require more power than one. I could see it dropping down to one when the battery is low.
Title: Re: 5D3 continuous shooting speed
Post by: THX723 on November 28, 2012, 07:03:32 PM
Processor/bus speed isn't the limiting factor here, the shutter/mirror mechanism is. It would appear (for the 5D3) the voltage drop by 50% battery capacity exceeded the threshold to properly energize the actuators for high-speed operation.
Title: Re: 5D3 continuous shooting speed
Post by: pwp on November 28, 2012, 07:17:06 PM
I generally get through a full day shoot OK on the 2 batteries in the 5D3 grip, even if I'm shooting 2000-3000 frames as I don't tend to chimp much at all. That's what sucks on the juice! But if the FPS issue is real that's a heads-up to get another couple of genuine LP-E6 cells ready for the day when I need that 6FPS rate for the entire day.

With luck this will be picked up in the firmware update due sometime in 2014. March? April? May? December....

-PW
Title: Re: 5D3 continuous shooting speed
Post by: rlarsen on November 29, 2012, 02:56:58 AM
I was surprised when I discovered the problem detailed here. It was shocking to experience how much the frame rate drops.

I don't use a grip but I keep an extra battery with me and may buy a second spare.  This is a serious issue when covering sports and news. I can get by with the 5D3 and 6 fps for most sports but not if the rate drops even a little bit.

A firmware fix....hmmm, we can only hope.
Title: Re: 5D3 continuous shooting speed
Post by: M.ST on November 29, 2012, 04:53:36 AM
Canon knows the problem and describe it as a fact in the manual.

I donĀ“t think that we get an update next year that fix the problem.

Use the 1D Mark IV or 1D X for sports and action shots. Compared to the 5D Mark III the 1D X is worth the money you pay for it.
Title: Re: 5D3 continuous shooting speed
Post by: tomscott on November 29, 2012, 05:41:24 AM
Does it depend on condition of the battery too??
Title: Re: 5D3 continuous shooting speed
Post by: infared on November 29, 2012, 05:52:41 AM
How about a better battery?
Title: Re: 5D3 continuous shooting speed
Post by: Octavian on November 29, 2012, 06:16:18 AM
pg 113 in the 5D3 Manual:


"When the battery level is low, continuous shooting speed may become slower"

They don't say how low or how slow but when I first got my 5D3 and the battery was fairly empty and tried High-speed continuous it was definitely not 6fps.

Still, I'm quite please with the autofocus and the frame rate when it is actually shooting at 6fps.  With my 7D and 8 fps, I always found if conditions weren't perfect, about 50% of the photos would not be critically sharp when viewed at 100% pixel peeping.  With the lower frame rate but better autofocus, I still find the 5D3 gives me more keepers.


This should be a menu option to disable that right and code it to go as low as e.g. 10% or something.
Some photographers (journalists, sports, wildlife) would require high speed up until the battery is close to depleted.
These heavy users would have other batteries to swap in when needed.
Having to do this after every 51% usage would be less than ideal for those folks.


Title: Re: 5D3 continuous shooting speed
Post by: pwp on November 29, 2012, 07:00:54 AM
How about a better battery?

Could it be that the better battery is the one mentioned in the spec list for the upcoming 7DII?

-PW
Title: Re: 5D3 continuous shooting speed
Post by: tron on November 29, 2012, 07:41:17 AM
How about a better battery?
OP has already said that the battery was the original one. How better than this?
Title: Re: 5D3 continuous shooting speed
Post by: KubaN on November 29, 2012, 08:22:30 AM
The recharge performance of both batteries that I'm using is 3 green, so that doesn't matter.

Today I'm going to the same store I bought my 5d3 and will check if the same problem is noticable in other bodies, with a fully charged battery and 49% of power. Will let you know what happens.
Title: Re: 5D3 continuous shooting speed
Post by: DeckardSolo on November 29, 2012, 08:57:16 PM
Just received my brand new 5D3 today from Adorama and this was one of the first things I tested.  Two brand new Canon batteries first time ever charged.  Brand new Sandisk Extreme Pro CF card only.  The first battery at 48% charge was shooting bursts very noticeably slower than the second battery at 92% charge. This would definitely be an issue for sports shooters.
Title: Re: 5D3 continuous shooting speed
Post by: KubaN on December 04, 2012, 12:35:44 PM
I've recently tested one 5D3 in the same store I bought my body. As I thought, the problem showed up in the same moment as in my camera, so 49%. FPS slowed from 6 to 3 when reached the level. I checked the SN and, I was suprised by the way, there was only one number differing from my SN, in the end, so it was the next body produced after mine. So, because of that I want to test another bodies in the future.
Title: Re: 5D3 continuous shooting speed
Post by: RustyTheGeek on December 04, 2012, 02:12:05 PM
We need some comic relief!

I think that at some point with regard to all the 5D3 issues, we need a talented comic strip artist to draw some funny caricatures of photographers working with/around all the myriad bugs/"features" in this camera.  Low Light focus issues, no red blinking focus point, 50% battery slowdown, no UHS-1 SD slot = slow global writes to CF and SD, etc.  A little humor might at least make a it little easier to stomach having to deal with these things after spending around $3000 for this thing.

Yes, it's a great camera.  Unfortunately, the word 'except' or 'but' usually follows that statement with some ridiculous faults that I wish Canon would acknowledge and fix.  Aaargh!
Title: Re: 5D3 continuous shooting speed
Post by: tron on December 05, 2012, 07:15:56 AM
2 days ago while I was taking test photos with my 5D3 to check AFMA I noticed that the battery was well below 50%. I remembered this thread and switched to continuous high. The sound was like 5 to 6 frames per second. This has been confirmed when I used the info button to check which pictures had been taken the same second. I counted 5 but this is an approximation (there is no tenth's of a second granularity). I repeated the test when the battery indicator was a little more than 10% and the sound seemed the same. So I believe that my camera behaves OK.