5DIII Buffer

[RedEye]

Does anyone know what the total Buffer capacity will be on the 5DIII? I'm basically a landscape or otherwise 'very slow' action photographer and so wondering if a 5-15MB per second transfer will be sufficient in order to facilitate enjoyable RAW shooting.

Thanks!

 

[wickidwombat]

Does anyone know what the total Buffer capacity will be on the 5DIII? I'm basically a landscape or otherwise 'very slow' action photographer and so wondering if a 5-15MB per second transfer will be sufficient in order to facilitate enjoyable RAW shooting.

Thanks!

do you mean using SD cards of very slow CF?
I know my 10MP 1Dmk3 seems to take FOREVER to write to 30MB/s SD cards vs 90 MB/s CF

 

[PeterJ]

In RAW only mode Canon list a maximum burst of 13 shots and then show in brackets 18 for a UDMA 7 card. I guess this implies a buffer of close to 13 shots with a slow card and it can do better with a faster card. My largest 5D2 RAW file having a glance at one folder is 30MB, assuming that was the average for a 5D3 with a bit more resolution you'd be looking at the following once the buffer was full to empty it:

30 * 13 / 5MB/s = 78 seconds (6 seconds per image)
30 * 13 / 15MB/s = 26 seconds (2 seconds per image)

So it'd probably be OK for slower shooting with just the odd burst, but painful if you filled the buffer. For the slower example too downloading 200 images * 6 seconds would be 20 minutes to download.

 

[WoodysGamertag]

In RAW only mode Canon list a maximum burst of 13 shots and then show in brackets 18 for a UDMA 7 card. I guess this implies a buffer of close to 13 shots with a slow card and it can do better with a faster card. My largest 5D2 RAW file having a glance at one folder is 30MB, assuming that was the average for a 5D3 with a bit more resolution you'd be looking at the following once the buffer was full to empty it:

Really? I thought they had some crazy stat about shooing 16,000+ RAW images on a UDMA 7 card in burst mode without stopping?

I know, cards aren't that big but am I crazy? Does anybody else remember what I'm thinking of?

 

[dwischnewski]

@Woody: those where 16.000+ JPEG, not RAW

 

[RedEye]

Does anyone know what the total Buffer capacity will be on the 5DIII? I'm basically a landscape or otherwise 'very slow' action photographer and so wondering if a 5-15MB per second transfer will be sufficient in order to facilitate enjoyable RAW shooting.

Thanks!

do you mean using SD cards of very slow CF?
I know my 10MP 1Dmk3 seems to take FOREVER to write to 30MB/s SD cards vs 90 MB/s CF

Right now I'm looking at using SDXC 128g lexar cards. I would like to take about 300-500G with me on trips, and no laptop for downloading because of space/weight. I thought about getting one great superfast CF card and buying a downloader, but the downloaders don't appear to really be that great or of superior value to just buying more cards. My only fear was that the cards would be too darn slow.