[pov] Re: CF card speeds and faster card reader?
- From: John Sage <jsage@xxxxxxxxxxxxxx>
- To: pov@xxxxxxxxxxxxx
- Date: Wed, 22 Dec 2010 17:15:31 -0800
On 10-12-22 04:46 PM, James Culbertson wrote:
I've been using Lexar 300x (45MB/sec) UDMA cards without issues to my Canon
5DmkII for awhile (for both stills and video). I'll be starting to shoot video
and stills under time pressure every once in awhile in the new year. Video
shooting won't benefit from faster cards from what I know of that process, and
I don't usually use continuous shooting mode, so I assume the main benefit in
my case of faster cards would be offloading to a laptop...
My old Firewire 400 CF card reader appears to max out at 10-12MBytes/sec (I'm
assuming the s100 spec). What are people using to get the fastest offloading
speeds these days?
Would I benefit much from going with Lexar 400x (60MBytes/sec) cards over the
300x (45MBytes/sec) cards?
I've been using 16 GB SanDisk Extreme Pro UDMA-6 CF type 1 cards
exclusively in my 5DM2 and 1DM4.
These (SanDisk says) are rated at 90 MB/s and suck up RAW (16.0 m/pixel)
and M-RAW (9.0 m/pixel) images at approximately 10 shots-per-second
seemingly indefinitely on the 1DM4 with no perceivable camera buffer
fill-up - that I've noticed, so far.
I've been less concerned with getting images off the cards.
I'm still back using a USB 1- or 2-rated card reader. I can clear off a
completely full 16 GB card in about 24 minutes.
Don't really know if that's good or bad; it just is what it is until I
install the new internal card readers I've got sitting around...
- John
--
John Sage
FinchHaven Digital Photography
Box 2541, Vashon, WA 98070
Email: jsage@xxxxxxxxxxxxxx
Web: http://www.finchhaven.com/
Cell: 206.595.3604
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