topic Re: Power Grips for Canon EOS cameras in EOS DSLR & Mirrorless Cameras

Power Grips for Canon EOS cameras

Edward — Mon, 18 Mar 2013 21:43:03 GMT

Does the addition of a power grip increases the number of frames/per second that can be shot with some models of EOS cameras? Recent EOS camera manuals state the addition of the power grips just increases the number of shots that can be taken. But if I recall correctly, when I owned the the Canon 40D and 50D the addition of a power grip increased the number of frames per seconds attainable. Am I correct?

Re: Power Grips for Canon EOS cameras

cicopo — Mon, 18 Mar 2013 23:20:10 GMT

I've never seen any claims it increases the FPS rate on Canon bodies but I think I have read that some Nikons get a FPS boost with a grip & I think the D800 is one of them.

Re: Power Grips for Canon EOS cameras

HDCamTeam — Mon, 18 Mar 2013 23:57:19 GMT

@cicopo wrote:
I've never seen any claims it increases the FPS rate on Canon bodies but I think I have read that some Nikons get a FPS boost with a grip & I think the D800 is one of them.

Neither us.

Indeed some Nikon increase the burst rate with battery grip (D700 was another one)

Regards

Re: Power Grips for Canon EOS cameras

7D5D — Tue, 19 Mar 2013 05:27:01 GMT

How could it? Buffer and write speed are the bottlenecks. Is there some other variable I'm missing?

Re: Power Grips for Canon EOS cameras

HDCamTeam — Tue, 19 Mar 2013 06:14:26 GMT

@7D5D wrote:
How could it? Buffer and write speed are the bottlenecks. Is there some other variable I'm missing?

Yes, Voltage & power consumption.

lt seems some Nikon DSLR do some kind of "overcrank" or "over clocking" on their electronics when more power is available.

That reminds me some comments by Chuck Westfall (Canon USA) about the higher voltage of 1DX batteries that allow faster AF in some lenses.

Of course FPS is different than AF speed, but both are related to electronics, processing power, etc.

This indeed is very common and well known in the graphic cards world and computing in general.

Regards

Re: Power Grips for Canon EOS cameras

Sami — Tue, 19 Mar 2013 07:00:16 GMT

Canon cameras do not seem to have any boost in fps when using battery grips. Sounds strange Nikon would.

If it "over clocks" the processor with a battery grip over the designed limit, it may shorten the life of the camera. If it "over clocks" the processor within the designed limit, the camera has been built slower than it could handle and this makes me think some sort of shenanigans are going on.

...unless the processor has been designed to handle voltage better than a single battery can provide, so it can take advantage of increased battery power.

Well, I don't have a Nikon, so it doesn't matter for me.

Re: Power Grips for Canon EOS cameras

7D5D — Tue, 19 Mar 2013 13:41:08 GMT

Seems I read some something about this a while back myself but I still remain skeptical it has any effect. But I can always be proven wrong , thanks.

Re: Power Grips for Canon EOS cameras

HDCamTeam — Wed, 20 Mar 2013 03:18:07 GMT

Hi,

Well, the Nikon D700 does in fact increase the frame rate when using the battery grip (don't remember if other models also do).

You can check the D700' specs: 6.0 fps (8.0 fps with battery grip).

Regards

Re: Power Grips for Canon EOS cameras

7D5D — Wed, 20 Mar 2013 04:59:49 GMT

@HDCamTeam wrote:
Hi,

Well, the Nikon D700 does in fact increase the frame rate when using the battery grip (don't remember if other models also do).

You can check the D700' specs: 6.0 fps (8.0 fps with battery grip).

Regards

Oh I don't doubt that about Nikon (because I've never owned, followed or read up on Nikon much), my skepticism remains with increase FPS on Canon. But thanks for the info on the D700, I do find that interesting that more juice increases FPS. Seems like it was marketing strategy from the get go - want the increase FPS? Get a grip.

Re: Power Grips for Canon EOS cameras

ebiggs1 — Wed, 20 Mar 2013 13:05:46 GMT

From what I have read and understand about the Brand N bodies it is not how much voltage the battery can deliver but how long.

Their processor uses the available current faster than one battery can provide.

My personal take is, I grip everything. Even back in the day my F1n and A1 had "grips" and motor drives. I find the extra shooting time is well worth the cost.

Re: Power Grips for Canon EOS cameras

HDCamTeam — Sun, 24 Mar 2013 03:56:13 GMT

We also use battery grips when shottig stills, they're geat, improve handling a lot, extend shooting time, etc,

Unfortunately battery grips are not so greal for video, unless in specific conditions or situations, because they add weight (to the already heavy Support system), and decrease stability (specially when using long lenses, stabilizers, dollies, sliders, etc.).

We mostly use the camera without battery grip when shotting video in a production.But when shouting video handheld in some situations the battery grip is just fine.