I received two of the same cards (SimpleTech 256MB) from
Amazon.com. I just tested a burst of 8 RAW files, then timed from
red light on to red light off. Sorry -- only single second
resolution.
SimpleTech 256MB 80s for 54.2MB = 694 k/s
Lexar 4x 80MB 59s for 54.1MB = 939 k/s
This is in a D60. I tested the ST card twice and got identical
results (690k/s).
As you'll note, we both get about 700Kb/s, while Rob's numbers are
about 1200Kb/s. The wimpy Lexar 4x beats these numbers by a good
margin.
The good part for me is that the cards were cheap and the way I am
currently taking pictures it isn't a problem -- the D60's buffer is
nice and I've been using JPEG instead of RAW. In my two days of
owning the D60 I truly have never had a problem. But then I'm
coming to the D60 straight from a film camera and have the "every
shutter press costs money" thing to overcome.
Could SimpleTech have changed the speed of their 256Mb CF?
This week I received 2 SimpleTech 256Mb CF from Buy.com (SimpleTech
part number STI-CF/256), identical in look to the reviews by Phil
Askey and Rob Galbraith.
My first impression in my D30 was that it was slower than my 1Gb
Microdrive. Then I tried it in my D60. I could barbaque a chicken
in less time than it took to write a burst of RAW.
So using the methodologies of Rob and Phil, I tested the speed with
both JPEG large/fine and RAW. This included formatting the card for
each test. The battery was fresh, etc.
I confirmed consistently that the write speeds were 50-60% of the
rates that both reviewers calculated, corrected for file size (my
subject was essentially black, and the actual file sizes were much
smaller than the reviewer's, about 1.5Mb for the JPEG and 5.3Mb for
the RAW). The actual data rate averaged close to 700Kb/s. The time
it took to process and write an 8 burst RAW (5.3Mb ea) was 76
seconds!
Has anybody else come across this?