Usefilm Home Sign Up Now! | Log In | Help  

Film and Digital Photography



  Photography Forum: Digital Photography Q&A Forum: 
  Q. how to choose a memory card?
           Asked by Domenico Franco    (K=829) on 10/16/2007
Hi all,
I'll buy a Canon Powershot G9, it allows three kinds of memory card: SD/SDHC/MMC card. What's the difference? Could you suggest me a brand too?
Thanks


    


Jan Hoffman  Donor  (K=38998) - Comment Date 10/18/2007
SDHC has the potential for higher density storage (example 8 gigs) and the prices are not too bad. For my Canon Powershot G9 I use a Sandisk SDHC 4 gig which I bought at Office Depot. Included in the package was a reader device that also allows you to plug the card into a USB port. The Sandisk Ultra 4 gig with reader came to a little less than $100.
--Best regards, Jan




Leonardo DP   (K=5) - Comment Date 1/14/2008
I have used SDHC, its great as of now I haven’t faced any sort of problems. So, I would recommend you to go with SDHC.

________________
Leonardo
[url=http://www.diskdoctors.net/]Photo Recovery[/url]






Dan Wilson  Donor  (K=12702) - Comment Date 4/14/2008
Yes Definately SDHC, with the resolution of your camera you need a High Capacity card, so you don't need to keep changing cards :-)




Domenico Franco   (K=829) - Comment Date 4/15/2008
thanks Daniel for your advice, I've yet bought a 4Gb sdhc card, it works fine but my camera (canon G9) format it up to 3.7 Gb, is it normal?
Regards




Stan Pustylnik   (K=6693) - Comment Date 4/15/2008
Domenico, memory cards die... Have spare memory cards with you every time you do important shots. Download images to PC regulary. Backup your images.




Jeroen Wenting  Donor  (K=24628) - Comment Date 4/17/2008
Domenico, yes that's normal.
There are 3 reasons for that:
1) the capacity listed is rounded to the nearest gigabyte (or megabyte for old cards, I still remember paying over 100 Euro for an 8MB card...)
2) the capacity listed is sometimes NOT in true gigabytes but in billions of bytes, and there's a difference. Marketing trick...
3) during formatting some space is needed to store the filesystem catalog and things like that. Think of this as a 1000 page book having a 50 page index and table of content.

And as Stan says, get several cards. Prefer multiple smaller cards over a single (or a smaller number) of very large ones.
I own a single 8GB card but rarely use it.
The one time I did use it its predecessor on a busy day it died when nearly full. Had I used 2 4GB cards and one died I'd not have lost several hundred irreplaceable shots (or rather hundreds less than I lost now).




Log in to post a response to this question

 

 

Return To Photography Forum Index
|  FAQ  |  Terms of Service  |  Donate  |  Site Map  |  Contact Us  |  Advertise  |

Copyright ©2005 Photo Publishing Group, LLC - All Rights Reserved

Elapsed Time:: 0.171875