Go Back   Steve's Digicams Forums > Digital SLR and Interchangeable Lens Cameras > Canon EOS dSLR

Reply
 
Thread Tools Search this Thread
Old Jul 31, 2007, 7:32 AM   #1
Member
 
Join Date: May 2006
Posts: 54
Default

Hi,

I recently purchased an extreme IV 4gb compact flash card for my canon 350d. I tested it initially when i bought it and it recorded images, etc and registered the total 4gb in the camera (i had read things about memory cards over 1gb not being read properly).

So, this weekend i took some photos at a wedding. I normally always shoot in RAW but found this weekend that when i was bursting it was taking ages to write my files to disk. I cant remember what it says in the manual but i was taking two shots then having to wait about 5-7 seconds for those to write to the CF card before allowing me to shoot again. I switched to jpg and this then allowed me to burst many more shots, but the write time again seemed rather slow.

Does anybody else have this setup or have experience of this problem? I thought the Extreme IV card would be really fast??

Thanks,

DJ
DJ-Catboy is offline   Reply With Quote
Sponsored Links
Old Jul 31, 2007, 1:47 PM   #2
Senior Member
 
Cyberf828's Avatar
 
Join Date: Sep 2006
Posts: 659
Default

What was the card you were using before the 4 gig? Go back to it and see if its doing the same thing. If not I would suspect it may be a bad card. Go online and check out the reviews on the card or it could be a fake card.



http://www.overclockers.com.au/wiki/Fake_Memory_Cards
Cyberf828 is offline   Reply With Quote
Old Jul 31, 2007, 4:51 PM   #3
Junior Member
 
Join Date: May 2007
Posts: 24
Default

the other issue could be is that flash card write speed is limited by what the camera is able to do.Meaning that if the camera has a top write speed of say 15kb per sec and the card has a write speed of 20kb per sec you are still writing at 15kb per sec (just tossing out numbers as a example, I have seen the bench mark tests before but cant get to them from here and I want to say if memory serves me the fastest card needed for your camera is a Extreme III
ST77 is offline   Reply With Quote
Old Aug 18, 2007, 11:39 AM   #4
Junior Member
 
Join Date: Apr 2007
Posts: 16
Default

Also,have the 350D.,and shoot Raw+jpg.

I would call Canon ,and find out exactly how big a card you can use with this camera.

I prefer to use 3 ,2gb cards .

Also,I've ordered a few SANDISK cards via Amazon and they have both failed,some of the cards you get over the internet are not always that reliable.

Hope this info helps?

Mike



mike397x is offline   Reply With Quote
Old Aug 18, 2007, 1:00 PM   #5
Senior Member
 
Michi's Avatar
 
Join Date: Jul 2003
Posts: 176
Default

Here's an interesting link. All sorts of memory cards tested with the 350D:

http://www.robgalbraith.com/bins/mul...?cid=6007-7699

However, the newer IV cards have not been tested with it, although I can't imagine that they are much faster with the 350D/XT, 6.2MB/s is probably near the limit of what the 350D/XT can write.

If you look at the 30D, the Extreme IV is basically just as fast as the Extreme III and some Ultra II's, so it's hardly worth the extra money:

http://www.robgalbraith.com/bins/mul...?cid=6007-8478

And like someone said, compare the performance to your other cards, the IV should be at least as fast as them, but not necessarily faster... If it IS slower, then there is something wrong with it.


Edit:

Wow, didn't realize this thread was started in the beginning of 2006, just disregard what I said, I'm sure the problem was solved by now :O

Michi 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 5:41 PM.