Go Back   Steve's Digicams Forums > Digicam Help > Memory Cards, Microdrives, Card Readers

Reply
 
Thread Tools Search this Thread
Old Feb 26, 2004, 9:25 PM   #1
Member
 
Join Date: Sep 2002
Posts: 85
Default Write speed of Hitachi 4GB microdrive

I found from the CF performance database in Rob Galbraith's site and it seems that the Hitachi 4GB MD performs quite differently in different DSLR:
http://www.robgalbraith.com/bins/mul...e.asp?cid=6007

Hitachi Microdrive 4GB on 300D - 719K/sec ,678K/sec
Hitachi Microdrive 4GB on 10D - 757K/sec ,746K/sec
Hitachi Microdrive 4GB on 1DS - 1184K/sec ,1601K/sec
Hitachi Microdrive 4GB on D2H - 1484K/sec ,1934K/sec
Hitachi Microdrive 4GB on DCS Pro14n - 3152K/sec, N/A

The first speed is for RAW and the second is JPEG. In general, it performs better in Kodak and Nikon but not Canon. And it has the worst performance in Canon 10D and 300D. And the difference can be up to 4 times!

Is it due to FAT16/FAT32 issue or other hardware specific reasons? Any improvement can be made?

Also anyone has other test statistics on this 4GB MD in prosumer DC e.g. Canon G1, Sony V1, Sony 828, etc?

Thanks!
hk_traveller is offline   Reply With Quote
Sponsored Links
Old Feb 27, 2004, 4:58 AM   #2
NHL
Senior Member
 
NHL's Avatar
 
Join Date: Jun 2002
Location: 39.18776, -77.311353333333
Posts: 11,544
Default

Formatting the drive with different cluster sizes also help... Check in other forums.

The Kodak's (even the old DCS's) use real H/W controllers similar to the ones used in laptop's PCMCIA. Cheaper cameras implement this interface through firmware.

The 8 vs 16-bit access mode adopted by individual cameras make more differences than the FAT16/32 which is just an addressing issue... A camera's cache aligning with the disk cache also speed up this process...
NHL is offline   Reply With Quote
Old Feb 27, 2004, 6:28 AM   #3
Member
 
Join Date: Sep 2002
Posts: 85
Default

Quote:
Originally Posted by NHL
Formatting the drive with different cluster sizes also help... Check in other forums.

The Kodak's (even the old DCS's) use real H/W controllers similar to the ones used in laptop's PCMCIA. Cheaper cameras implement this interface through firmware.

The 8 vs 16-bit access mode adopted by individual cameras make more differences than the FAT16/32 which is just an addressing issue... A camera's cache aligning with the disk cache also speed up this process...
Thanks!
hk_traveller is offline   Reply With Quote
Old Feb 27, 2004, 8:09 AM   #4
NHL
Senior Member
 
NHL's Avatar
 
Join Date: Jun 2002
Location: 39.18776, -77.311353333333
Posts: 11,544
Default

Also notice the specs, at ~81x max. It's as fast if not faster than any flash out there provided one has the correct HW/interface(just like WA) in the camera to back it up!
NHL is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 1:27 PM.