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

Reply
 
Thread Tools Search this Thread
Old Jul 3, 2010, 12:30 PM   #1
Member
 
Join Date: May 2010
Posts: 56
Default Card for continious shooting and video

On a T1i. What card do i need to shoot continious well?

Is this SanDisk Ultra II SDHC 16GB

good? It has a 15/mb write speed. How fast is fast enough? Thanks.
Ishay is offline   Reply With Quote
Sponsored Links
Old Jul 3, 2010, 1:48 PM   #2
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,572
Default

For Video + Audio, you need at least a Class 6 card. And faster won't hurt.

The SanDisk Ultra (II) is a Class 4 card.
__________________
  • The lens is the thing.
  • 'Full Frame' is the new 'Medium Format'.
  • "One good test is worth a thousand expert opinions." - Tex Johnston, Boeing 707 test pilot.
TCav is offline   Reply With Quote
Old Jul 3, 2010, 2:07 PM   #3
Member
 
Join Date: May 2010
Posts: 56
Default

SanDisk Extreme III SDHC- X133 speed. Good enough?


I'm really having trouble here because for some reason cards are not labeled...and I don't want to end up shooting at 0.5 fps
Ishay is offline   Reply With Quote
Old Jul 3, 2010, 2:51 PM   #4
Senior Member
 
Join Date: Mar 2003
Posts: 3,200
Default

Quote:
Originally Posted by Ishay View Post
On a T1i. What card do i need to shoot continious well?

Is this SanDisk Ultra II SDHC 16GB

good? It has a 15/mb write speed. How fast is fast enough? Thanks.
Always the same nonsens :-) 15MB (megaBYTE) is READ speed !!!
This value is SENSELESS, even Class2/Class4 cards have 16MB/s READ speed. WRITE speed is much slower!

Why do you think is for Class4 FOUR MB/s (megaBYTE) write speed guaranteed ... but Sandisk writes "15MB" on their cards ?

Sandisk Class6 with "20MB" have 20MB READ speed. This is tricky/dirty promotion :-(

Fastest video you get with Canon DSLRs and SX1 - 43Mb/s - these are

43Mb/8 = 5.3 MB ... Class6 is fast enough, Class4 maybe to slow or not.
My old Kingston Class4 would be to slow, it has 4.3 MB/s write speed. My Transcend Class6 have 8-10 MB/s write speed,
Class10 (cheaper than Class6) have 12-14 MB/s write speed.

<--- haha, "speed" for dudes ...

This means: 4MB/s write speed guaranteed, 15MB/s read speed possible (depending ... reader ... and sequential ! .. not random)

from Sandisk (German) page:

15 MB/Sekunde sequentielle Lesegeschwindigkeit ... LESEN = READ !

Last edited by DonalDuc; Jul 3, 2010 at 3:06 PM.
DonalDuc is offline   Reply With Quote
Old Jul 3, 2010, 3:13 PM   #5
Senior Member
 
TCav's Avatar
 
Join Date: Sep 2005
Location: Washington, DC, Metro Area, Maryland
Posts: 13,572
Default

The specs that ALL manufacturers use is the peak read and write speeds. The SD Association created the Class System, where the class indicates the minimum sustained write speed. For storing video+audio, you need at least a Class 6 card.
__________________
  • The lens is the thing.
  • 'Full Frame' is the new 'Medium Format'.
  • "One good test is worth a thousand expert opinions." - Tex Johnston, Boeing 707 test pilot.
TCav 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 3:15 PM.