Okay, my 128mb RiData CF card arrived today, I ordered it from powerinnumbers.com.au last week, a bit of a delay but that doesn't matter, I found Vasa very helpful and he even included a PC-slot CF card adapter for nothing. I've just done some rough tests in my Olympus E-10.
Method: I took a shot in the Olympus Raw Format (.orf) which produces roughly a 7mb file. Camera was set to manual, shutter speed was 1/320 and aperture f2.2. I used an electronic stopwatch (measures to 1/100th), which I started when I pressed the shutter release button and stopped when the red light on the back of the camera stopped flashing, which indicates that the card is being written to. I repeated this 5 times and averaged the results for each card. I tested each card I have.
Results:
Kodak 96mb CF: 20.7 sec
Ridata 128mb CF: 13.7 sec
Sandisk 128mb SM: 13.5 sec
Sandisk 16mb SM: 15 sec
Olympus 8mb SM: 16 sec
(times rounded to the nearest tenth)
Conclusion: The two fastest cards were clearly the Ridata CF and Sandisk 128mb SM, one of the great things about the E-10 is that there are slots for both SM and CF, so I can have them both in together. What is interesting is the difference between the two CF cards, the Ridata is substantially faster than the Kodak, even in what is generally regarded as a "slow" camera, like the E-10. I don't know how the read speeds compare, as I don't have a card reader or any real desire to test them, write speeds are more important to me when I'm out and about. As someone who hails from Australia and drools everytime he reads about the $50 128mb cards available in the USA it is refreshing to see that things are getting cheaper down here as well, for example, in Feb when we bought our E-10 we also purchased the 96mb Kodak CF card for about A$400, last week I paid A$167 (posted) for a 128 Ridata CF card, not only cheaper but A LOT faster as well. Not quite A$1/mb but getting better all the same.
I hope that someone finds this useful. It goes without saying that my tests were not exactly the pinnacle of scientific accuracy but they were real world at least.
Cheers,
Brad.
http://www.pbase.com/clashbrad/galleries
I recently ordered an E-10 and want to purchase a 256 mb CF card.
I've been told the memory bus and internal processing in the E-10
is too slow to take advantage of faster CF cards so there won't be
any (or a very small) difference in speed between Ridata and Mr.
Flash when used in my (soon to be) new camera. Is there anybody
with experience in using different flash cards with the E-10 that
can shed some more light?