Even better, try using a Sandisk Ultra II as long as it's 2GB or less.
I believe you'll find no more difference between Ultra II and Extreme
III at 2GB than you have found between Extreme III and Extreme IV.
Dpreview's file write test results for the E-500 show the Ultra II as
only about half the speed of an Extreme III. But be sure to note that
the card they use is 4GB which requires FAT32 support. I very strongly
suspect that Oly's FAT32 support on the E-500 is very inefficient and
the performance at 4GB is due to the camera and not the Ultra II card.
<http://www.dpreview.com/reviews/olympuse500/page10.asp>
For example, check Rob Galbraith's compact flash performance data base
for the Canon 5D and you'll see that there's hardly a dime's worth of
difference between all 3 cards including the 4GB version of the Extreme
IV. But, as I would expect, the 2GB version of the Extreme 4 is faster
than the 4GB version. It's FAT32 software overhead. The Ultra II is
already at the kind of price you're hoping the Extreme III is going to.
<http://www.robgalbraith.com/bins/multi_page.asp?cid=6007-8198>
Chuck Norcutt
Rickard Nilsson wrote:
> Hi,
>
> This is my first post to this great list that I've been reading for a
> while.
>
> Thought I should post some numbers from a comparison I did between the
> Sandisk Extreme III and IV CF cards on my E-500 this weekend.
>
> This is how I did it:
> I set the camera to sequential shooting and held down the release button
> until the buffer was full (four captures). I measured the time from
> pushing the button until the camera finished writing from the buffer to
> the card (that is, until the little red light to the bottom right of the
> LCD went black). The camera was set on M mode, 1/200, f3.5, ISO 200. I
> used the standard 14-45 lens on 14mm.
>
> First, I shot RAW+SHQ:
>
> III IV
> 10.07 9.72
> 9.83 9.57
> 9.97 9.63
> 9.87 9.68
> 9.79
>
> ~9.94 ~9.67
>
>
> Then just RAW:
>
> III IV
> 5.67 5.58
> 5.42 5.28
> 5.67 5.33
> 5.57 5.38
> 5.37 5.38
> 5.57 5.42
>
> ~5.52 ~5.35
>
>
> So it seems that the Extreme III card is more or less as fast as the
> E-500, which is good news for me, since I then don't have to worry about
> getting the IV card, but instead target in on III which will probably get
> cheaper and cheaper.
>
>
> / Rickard
>
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