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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 05 Nov 2008 (Wednesday) 10:02
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Why use 16GB CF cards??????

 
AlanU
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Nov 05, 2008 10:02 |  #1

Just a curiousity question: why do people use 16GB cards? Is it due to the large RAW files?

I have 2 ultraII 4gb and 1 4gb sandisk ducati edition. My take is if one craps out or "corrupt data" I only loose a max of 4gb. I have a piece of mind spreading the love amongst several cards rather than having all in 1 basket.

After aprox 15,000 pics 1 of my sandisk ultraII's gave me a corrupt data message and lost all photos. I was told simply to reformat. I never formated because I used the continuous numbering system to keep a tally on my actuations.

Do others format on a regular basis?? If you have a "corrupt data" message do you toss the CF card in the garbage due to potential loss again???

Any input would be nice to hear.

thanks!


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elbirth
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Nov 05, 2008 10:09 |  #2

The main reason would be due to shooting RAW with higher-MP cameras. When you're shooting at 10, 15, even 21MP, they tend to add up pretty quickly. And if you're doing a lot of shooting of anything remotely action-based, you don't want to have to keep swapping cards and missing action.

I agree that it's risky to shoot all on one card, which is why I was hoping the 5D Mark II would introduce 2 card slots into a non-1D body, but that didn't happen. I like that with those, you can shoot to a CF and SD card simultaneously, so you can have 2 copies if you want. Then if one card craps out, hopefully the other didn't. With all electronic cameras and memory cards, we're always at their mercy and have to hope/pray that they don't die on us before we get the shots taken and downloaded to our computers. It's just a matter of it you're spreading that hope out more over more cards or not


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cdifoto
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Nov 05, 2008 10:10 |  #3

Some photographers feel the chance of bending a pin or losing a card is greater than a card becoming corrupt.


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stathunter
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Nov 05, 2008 10:13 |  #4

I have been using 16gb cards for the past several months--- no problems up until recently when my Aperture will not seem to download them when I have over 500 or so images. For the past month I have had to take the card and copy it to external hard drive then import into Aperture.
I am always cautious that I do not put too many images on the card--- just makes it nice to not have to swap out cards too often---but it is a scary thing to think about loosing that many images.
I format every time I put the card in the camera. I am thinking that even though I format I still have garbage in the card--- does anyone know how to "really" clean out the card?


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ef2
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Nov 05, 2008 10:19 |  #5

AlanU wrote in post #6628161 (external link)
Do others format on a regular basis?? If you have a "corrupt data" message do you toss the CF card in the garbage due to potential loss again???

Any input would be nice to hear.

thanks!

I had a bad A-Data card that kept getting corrupted. I could recover all the files off from it though with Sandisk's Rescue software. I finally through it out after ripping it apart.


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cdifoto
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Nov 05, 2008 10:20 |  #6

stathunter wrote in post #6628228 (external link)
does anyone know how to "really" clean out the card?

Write zeros to it with a program like RescuePRO. Takes forever though so you don't want to do it often.


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dr_morbius
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Nov 05, 2008 10:26 as a reply to  @ cdifoto's post |  #7

I like doing a complete job without changing memory cards. With 16GB CF and 16GB SD in my main camera and 16GB CF in the backup I'm good to go. Still I carry three more 16GB cards just in case...


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cdifoto
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Nov 05, 2008 10:27 |  #8

I do 8 and 8. Holds about 750 shots, so I usually only have to change out during the tail end of the day. I keep a smaller card in my 2nd camera since it barely gets used.


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61ache
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Nov 05, 2008 10:55 as a reply to  @ cdifoto's post |  #9

Mostly useless information with no value: a 16GB drive should fail at a lower rate then a 4GB drive. Flash only writes '0's and skips '1'. When you format all '0's are erased and put into a '1' state. However, Flash can only write a specific number of times before failure. Most electronics that use static non-volatile memory (doesn't erase when power is turned off) randomly write different memory locations so one sector is not written over and over again. Using larger flash should lower your chances of a stuck bit and corrupt data while increasing the life of the memory.


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static808
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Nov 05, 2008 11:07 |  #10

AlanU wrote in post #6628161 (external link)
After aprox 15,000 pics 1 of my sandisk ultraII's gave me a corrupt data message and lost all photos. I was told simply to reformat. I never formated because I used the continuous numbering system to keep a tally on my actuations.

this is weird, since with my 20D, if i format the CF card using the camera itself, the file numbering remains intact. the folders all disappear, but the numbering continues from where i left off. if i simply erase all images, all of the folders remain, but theyre empty. is this normal behavior?? or do newer cameras completely reset the file numbering when the CF is formatted. thanks!


Rob

  
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ef2
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Nov 05, 2008 11:12 |  #11

The camera should know where it left off at.
Formatting deletes everything on the card.
Erasing images just erases images.


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Jon
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Nov 05, 2008 11:13 |  #12

Nope. None of Canon's cameras that I know of will reset the file numbering unless either you have set "Auto reset" or you do a manual reset of the file numbering. You can reformat in or out of the camera with impunity.

And it doesn't surprise me that erasing the files leaves the directories behind. It all depends on how you're erasing them.


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GerBee
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Nov 05, 2008 11:17 |  #13

916 RAW shots from a 5D less from the new version. :)

AlanU wrote in post #6628161 (external link)
Just a curiousity question: why do people use 16GB cards? Is it due to the large RAW files? thanks!




  
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GerBee
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Nov 05, 2008 11:23 |  #14

I'm not a believer in formatting the card after each use. I do format routinely every so often.

I'd personally not use a card I had errors with as my main card.

AlanU wrote in post #6628161 (external link)
Do others format on a regular basis?? If you have a "corrupt data" message do you toss the CF card in the garbage due to potential loss again??? Any input would be nice to hear. thanks!




  
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Sean
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Nov 05, 2008 11:38 |  #15

Format every time I download images off it and verify they are saved.


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Why use 16GB CF cards??????
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