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How fast a Flash card is needed for the 20D

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Anonymous
June 18, 2005 2:38:52 PM

Archived from groups: rec.photo.digital (More info?)

Folks,

How 'fast' a flash card makes sense with the Canon 20D?
For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
and an Extreme III. What will be the difference with these cards in
actual use with a 20D?

Thanks

W
Anonymous
June 18, 2005 3:29:21 PM

Archived from groups: rec.photo.digital (More info?)

winhag@yahoo.com wrote:
> Folks,
>
> How 'fast' a flash card makes sense with the Canon 20D?
> For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
> and an Extreme III. What will be the difference with these cards in
> actual use with a 20D?
>

In-camera use, in ordinary circumstances, I see no significant
difference among them. The difference emerges when downloading full
cards from a reader, and then it's only a few seconds.

In "shoot-the-buffer-full-and-keep-going mode", it seems to me a
matter of a few percentage points difference in the time-to-next-shot.

I buy the fastest I can afford, just in case (here a miracle occurs)
sudden technology advances drive me to hardware that could use it. How
likely is that, during the amortization period of a CF card?

--
Frank ess
Anonymous
June 18, 2005 3:46:00 PM

Archived from groups: rec.photo.digital (More info?)

The 20D has an internal buffer to hold pictures until written to CF
card. So in actual shooting you will not notice a difference until the
buffer fills and writes to CF. If you shoot and store both RAW and
JPEG at the same time, you would fill the buffer after one second of
continuous shooting at 8Mpixel! So if you're shooting sports, you'd be
concerned about reducing any wait time to continue shooting. If you're
simply shooting a graduation, you'd not care and maybe settle for
mid-speed. If you're a landscape photographer, go with the slowest!
It depends upon your shooting needs as to whether or not you spend the
money for faster CF card. 1MB for $50 (normal speed), $75 for 40X,
$100 for 80X, typical web quotes. Pick your poison depending upon your
shooting needs. As another post points out, the speed may also matter
if you have a CF full of pictures and are downloading to your PC, and
are impatient for the download time.
Related resources
Anonymous
June 18, 2005 7:07:04 PM

Archived from groups: rec.photo.digital (More info?)

Speed is only one criteria. I shoot in cold climates every year, so I wanted
a card that I know would work in cold temps, as well. But yes, you will
notice a difference in reading and writing files to a faster card. The
Sandisk Extreme III cards are very nice, and rated to work in very cold and
hot conditions.

<winhag@yahoo.com> wrote in message
news:1119116332.777088.319410@o13g2000cwo.googlegroups.com...
> Folks,
>
> How 'fast' a flash card makes sense with the Canon 20D?
> For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
> and an Extreme III. What will be the difference with these cards in
> actual use with a 20D?
>
> Thanks
>
> W
>
Anonymous
June 18, 2005 9:48:06 PM

Archived from groups: rec.photo.digital (More info?)

Thanks all. At this point based on all the feedback, I will probably go
with a mid-range card (e.g. 1GB Sandisk Extreme II).

winhag@yahoo.com wrote:
> Folks,
>
> How 'fast' a flash card makes sense with the Canon 20D?
> For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
> and an Extreme III. What will be the difference with these cards in
> actual use with a 20D?
>
> Thanks
>
> W
Anonymous
June 18, 2005 11:03:42 PM

Archived from groups: rec.photo.digital (More info?)

On 18 Jun 2005 10:38:52 -0700, "winhag@yahoo.com" <winhag@yahoo.com>
wrote:

>Folks,
>
>How 'fast' a flash card makes sense with the Canon 20D?
>For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
>and an Extreme III. What will be the difference with these cards in
>actual use with a 20D?

In setting up my 20D kit, I've standardized on the Sandisk Extreme III
in 1 and 2 Gig sizes. I want the fastest cards as I know I'll at some
point be moving to a FF Canon and it will help. Also the speed makes a
big difference when unloading a 2 Gig card with a USB2 card reader
which if full of CR2 files.

Why be cheap on the media where your images will be?


*********************************************************

"I have been a witness, and these pictures are
my testimony. The events I have recorded should
not be forgotten and must not be repeated."

-James Nachtwey-
http://www.jamesnachtwey.com/
Anonymous
June 19, 2005 3:34:55 AM

Archived from groups: rec.photo.digital (More info?)

In article <1119116332.777088.319410@o13g2000cwo.googlegroups.com>,
"winhag@yahoo.com" <winhag@yahoo.com> wrote:

> Folks,
>
> How 'fast' a flash card makes sense with the Canon 20D?
> For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
> and an Extreme III. What will be the difference with these cards in
> actual use with a 20D?
>
> Thanks
>
> W

You can find some charts on the internet. Of course it only matters if
you're shooting faster than the card. The camera's internal buffer lets
you shoot bursts without waiting.

Why do you want a fast 1GB card? If you're shooting fast enough to
worry about write speeds, you're probably shooting fast enough to fill a
1GB card in a hurry.
June 19, 2005 4:23:18 AM

Archived from groups: rec.photo.digital (More info?)

winhag@yahoo.com wrote:

> Folks,
>
> How 'fast' a flash card makes sense with the Canon 20D?
> For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
> and an Extreme III. What will be the difference with these cards in
> actual use with a 20D?
>


Depends on the camera's fireware and hardware. I'm sure someone has done
some tests to show which cards work the best? On my E-300 extreme II's
transfer at ~5MBs while the III does just over 9MBs with the latest
fireware. Like others said it also helps with download speeds even if the
camera can't upload any faster with the "extra" speed of the III cards.

--

Stacey
Anonymous
June 20, 2005 1:49:19 PM

Archived from groups: rec.photo.digital (More info?)

"winhag@yahoo.com" <winhag@yahoo.com> writes:
> Folks,
>
> How 'fast' a flash card makes sense with the Canon 20D?
> For example, Sandisk has a plain vanilla 1GB card, an Extreme II,
> and an Extreme III. What will be the difference with these cards in
> actual use with a 20D?

I can notice a pretty sizeable difference on my 300D between the
vanilla and Extreme II cards. I haven't quantified it yet though.
IMO, the extreme II seems worth the extra $15.

--
Todd H.
http://www.toddh.net/
!