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Memory card(s) for G9

Started Jun 13, 2021 | Questions thread
pannumon Veteran Member • Posts: 4,130
Re: Memory card(s) for G9

Minstadave wrote:

I dont understand how you get high shooting speeds with a faster card if the buffer isn't full or am I missing something?

I don't understand it, either. Of course card speed becomes limiting factor for cameras with small buffer. However, for example in this old thread about G9 slow burst rate, no-one mentions card speed: https://www.dpreview.com/forums/thread/4370544

Then I realized that there is only one way to find out, so I did a test with SH2 mode on G9 with two cards:

  • 128GB Kingston Canvas React UHS-I card (specified write speed 80MB/s)
  • Old Lexar 2GB card (read or write was about 4MB/s based on my own tests back in the day)

I could not see a difference in burst speeds, it was so fast I could not reliably measure it while pointing the camera to the subject I had.

While I was it, I measured how long it takes to clear the 50 image buffer (raw + lower quality JPEG):

  • With Kingston: about 39 seconds to clear about 1,3GB of data (50 images) - about 32MB/s
  • With old Lexar: about 400 seconds (8 minutes) to clear similar amount of data - about 3 MB/s.*

*The card became full, but I did count how long it took to clear one image, it was about 8 seconds.

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