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12-12-2014, 10:56 PM   #1
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Need Help In Buying SD Card for 645D

I have read some of the responses but the Confusion I still have is: Buy a Class 10 Sd card BUT they all have UHS-1 . According to the forum. This card is Not compatible due to the UHS. Please let me know what are my options? Thank you

12-12-2014, 11:13 PM   #2
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QuoteOriginally posted by rollsman4 Quote
I have read some of the responses but the Confusion I still have is: Buy a Class 10 Sd card BUT they all have UHS-1 . According to the forum. This card is Not compatible due to the UHS. Please let me know what are my options? Thank you
You can still use UHS-I cards, the camera just doesn't benefit from the added speed. However, if you do pick up a UHS-I card, you're guaranteed to get optimal performance since those cards are pretty fast to begin with.

Here's the card I recommend:
SanDisk 32GB Extreme UHS-I Speed Class 3 SDHC SDSDXN-032G-G46

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12-12-2014, 11:56 PM   #3
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QuoteOriginally posted by rollsman4 Quote
I have read some of the responses but the Confusion I still have is: Buy a Class 10 Sd card BUT they all have UHS-1 . According to the forum. This card is Not compatible due to the UHS. Please let me know what are my options? Thank you
I just want to add that it is not only about write speed. The 645D has its limitations in write speed. But if you shoot a lot, check the cards you want to buy for read speed. Downloading 32GB with a read speed of 20-40 MB/sec is very time consuming adn boring. The more you shoot per day the more important the read speed will be.

Martin
12-13-2014, 07:40 AM   #4
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Not sure if this happened to anyone else, but I've had the 645D for a short time and when using it with both a Sandisk and Lexar 64GB UHS-I cards, I would sometimes get corrupt images, more so with the Sandisk. The camera would show "this image cannot be displayed" on corrupt images and loading them into Lightroom resulted in a glitchy mess. YMMV.

12-13-2014, 09:31 PM   #5
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QuoteOriginally posted by Kolor-Pikker Quote
Not sure if this happened to anyone else, but I've had the 645D for a short time and when using it with both a Sandisk and Lexar 64GB UHS-I cards, I would sometimes get corrupt images, more so with the Sandisk. The camera would show "this image cannot be displayed" on corrupt images and loading them into Lightroom resulted in a glitchy mess. YMMV.
Sandisk is one of most reliable cards. Try reformatting. Another unfortunate possiblity is that you have a counterfeit card.
12-14-2014, 02:45 AM   #6
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QuoteOriginally posted by robertchow999 Quote
Sandisk is one of most reliable cards. Try reformatting. Another unfortunate possiblity is that you have a counterfeit card.
It works perfectly in my 645Z however and not a single error so far, it was only a problem in the 645D, and on no other device that I have used it with. At times I could take 6 shots before it finally wrote one image to card.
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