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06-18-2010, 06:34 PM   #1
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What memory card for a K-7?

I'm about to *finally* (woo-hoo!!) order a K-7 and I can't find anything about what type of memory card to get. I want to get two 8gb cards, but I don't know how fast they should be. I want as fast a card as the camera can use, but I don't want to pay for a faster card than the camera can make use of. Or is speed really just for downloading the photos from the camera?

So SanDisk Extreme III 20gb/s? 30gb/s? Transcend Class 6? Class 10? Lexar 60x?

(How do "gb/s", "class" and "x" compare to each other anyway?)

Greg

06-18-2010, 06:42 PM   #2
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Here's a good article that tells you what class and x mean.

Secure Digital - Wikipedia, the free encyclopedia
06-18-2010, 07:45 PM   #3
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I have a couple of Transcend Class 6 cards and they seem to do really well -- one is 16 GB and one is 8 GB.
06-18-2010, 07:56 PM   #4
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I use a Sandisk 8Gb 30Mb/s class 10. The reason for going with that one was the video. When I first bought the camera, my class 6 transcend would stop recording at less than 1 minute (filled buffer I guess). The Sandisk took care of that problem. I think Pentax has since released a firmware update to address that problem so it may not be as important to have the zippy fast cards. For normal picture taking, the class 6 should more than suffice.



06-18-2010, 07:59 PM   #5
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I use Sandisk Extreme III 30 Mbps edition with my K-7. They are Class 6. I got them when I purchased my K-7, and there was a special where they give a mail in rebate and send back a prepaid Visa card, effectively making one card free. There are newer Extreme cards that are now Class 10, but I havent tried those. Those should also perform great.

I think any Class 6 card should do fine. A lower class card should also work if you dont plan on using video or a lot of continuous shooting, but i havent tried. I prefer Sandisk. Pretty decent quality and they always have a buy x get y free promos. I think B&H has one right now on the Extreme class 10 right now actually.
06-18-2010, 08:01 PM   #6
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the faster that you can afford, the better because you get smaller black-out times shooting raw and bursts.
06-18-2010, 08:03 PM   #7
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While the Class rating system can be suspect, a Class 6 or higher card is really necessary for MJPEG video.

If no video, then a Class 2 would suffice.
06-18-2010, 10:48 PM   #8
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I use a Sandisk 16Gb 30Mb/s class 10 with my K-7. I take a lot of Hi continuous shots, and I wanted a fast card. If you intend to take a lot of videos or do a lot of Hi continuous shooting, go for a class 10; the Sandisk are highly recommended by most Pentaxians although they are not the cheapest.

Since I do not want to loose my shots or get stuck with a faulty card during bushwalking, I prefered to go for the Sandisk. An alternative would have been to get 2 cheaper cards, one being a backup, but that would have been more expansive at the end.



Last edited by hcc; 06-19-2010 at 03:29 PM. Reason: Typos
06-19-2010, 12:29 PM   #9
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Just ordered sandisk 16 gb class 10. Been using 8 gig class 6 with no noticeable problems.
I will be able to tell if there is a difference, next week.

Cheers, Mike.
06-19-2010, 08:34 PM   #10
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I've used Sandisk cards since they were blue. They aren't the cheapest out there, but I rarely hear of problems with them, and I've always found them reliable.
The Ultra II cards are generally fast enough unless you shoot a lot of pictures in a row, the Extreme III cards are probably faster than the camera.
Even if they aren't, they are very fast.
Did I mention that they seem to be reliable?
06-19-2010, 08:55 PM   #11
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Sandisk 32GB Ultra II SDHC Memory Card
06-19-2010, 08:58 PM   #12
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if you whant to shoot video
SanDisk 32GB SD SDHC Extreme
06-19-2010, 10:06 PM   #13
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Use mainly extreme 3,but if you want for a K7 try lexar for faster transfer


cheers
06-24-2010, 07:28 PM   #14
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QuoteOriginally posted by JeffJS Quote
I use a Sandisk 8Gb 30Mb/s class 10. The reason for going with that one was the video. When I first bought the camera, my class 6 transcend would stop recording at less than 1 minute (filled buffer I guess). The Sandisk took care of that problem. I think Pentax has since released a firmware update to address that problem so it may not be as important to have the zippy fast cards. For normal picture taking, the class 6 should more than suffice.

I'll just add that, I have a "low class" card and am looking for a class 10 to shoot video with. I've had the same buffer runout issue, and have learned from that mistake (though it handles stills just fine). I would like to get more than a minute at a shot and there's no reason to try and cheap out when that class 10 card is going to give you even faster performance.
06-24-2010, 08:09 PM   #15
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Bought some Panasonic class 10 cards from Prodigital2000. These were used by the Canadian teams in the last Olympic. Very good cards for the K-7.
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