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04-26-2012, 11:22 AM   #16
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I recently invested in a Sandisk 16Gb 30Mb/s class 10 card for my K-7. I have not used it for video. When using for photos it indicates 'full' after 10 to 15 shots. Anyone else have this issue?

04-26-2012, 11:32 AM   #17
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Did you buy the card on ebay? Some of them are fake. Are you shooting RAW + or jpg? And lastly, have you formatted the card in the camera rather on the computer?
04-26-2012, 11:38 AM   #18
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Thanks photolady. I bought the card at Best-Buy and I am shooting in jpg. I formatted it on the camera.
04-26-2012, 11:38 AM   #19
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i use a variety of cheap cards, I dont shoot full frame rate or do a lot of video and typically spend $1-$2 per GB at present.

I have cards ranging from 512MB through 8GB, I dont get larger cards for fear that if I drop it i will have too many images lost,

04-27-2012, 12:38 AM   #20
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I started using only Sandisk Extreme III (Class 10) 30 MBp/s 8GB
I have a few Sandisk Extreme (something Class U-1) 45 MBp/s 8GB when they were the same price.

They do write jpegs slightly faster but not enough to justify paying more for them.
Maybe with a K-5 and 7 fps shooting. But maybe the limitation is the tiny buffer in the camera more than the card.

When I get to shooting RAW I might use 16GB cards if I find myself filling up 8GB too fast.

I dont do video BTW.

I only use Sandisk USB sticks also. I've had only 2 "other brand" ones and they they both died.
07-30-2012, 05:34 AM   #21
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I need another SD-card for my Pentax K-7 and since SDXC now is supported I am considering a 64 Gb card. The firmware update however states that UHS-1 is not supported, but I read people are using Class 10 cards.

Looking at the Sandisk webpage there are two reasonable options for me:

Sandisk Ultra-SDXC 64 Gb 30 MB/s Class-10 UHS-1
Sandisk Ultra-SDXC 64 Gb 20 MB/s Class-6

The price for the cards is more or less identical, thus I would prefer the faster one. But only if it is working with my Pentax K-7...

Any one who knows for sure?


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