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03-07-2011, 04:24 PM   #1
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k-5 write speed

When shooting in RAW it seems to take a while for the images to write to the card and then show up on instant review. I came from an K10D where there wasn't much of a wait at all. Is this normal on the K-5? I'm using an Sandisk Extreme III 4GB card so I don't think its the card.

03-07-2011, 05:15 PM   #2
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hi there, it is normal, it happens on my k5 even when shooting jpg, and I've seen numerous posts across a number of forums stating this too.
03-07-2011, 06:17 PM   #3
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I don't really think they've increased the bus speed all that much from the K10 to the K5, but they have increased the file size a whole bunch.
The K5 isn't instant gratification WRT the review screen.
03-07-2011, 06:46 PM   #4
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Probably some sort of in-camera processing- lens correction or what not that is slowing you down...

03-07-2011, 07:41 PM   #5
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QuoteOriginally posted by velingara Quote
Probably some sort of in-camera processing- lens correction or what not that is slowing you down...
I have all that stuff turned off. There is definitely some processing, but at 7 frames per second, the camera can certainly pack files into the buffer in a hurry. The camera is just plain slow to write.
03-28-2011, 03:42 AM   #6
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QuoteOriginally posted by Wheatfield Quote
I have all that stuff turned off. There is definitely some processing, but at 7 frames per second, the camera can certainly pack files into the buffer in a hurry. The camera is just plain slow to write.
I have a Sandisk 8gb Class 10 30mbs card on the way. I will compare it to a class 6 in a K7 and see how it goes.
03-28-2011, 03:49 AM   #7
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How long is "a while"?
I haven't noticed any delay as long as I stay at iso 1600 or lower.
03-28-2011, 03:52 AM   #8
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QuoteOriginally posted by Spotmatic Quote
I have a Sandisk 8gb Class 10 30mbs card on the way. I will compare it to a class 6 in a K7 and see how it goes.
Class 10 means (at least) 10MB/s, so if it is 10MB/s then a typical raw file will take about 2 seconds to write.

I think the K5 has a write speed of about 20MB/s so anything slower then that will slow down the camera.

03-28-2011, 01:26 PM   #9
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QuoteOriginally posted by qh187 Quote
When shooting in RAW it seems to take a while for the images to write to the card and then show up on instant review. I came from an K10D where there wasn't much of a wait at all. Is this normal on the K-5? I'm using an Sandisk Extreme III 4GB card so I don't think its the card.
Any processing like Noise Reduction is going to slow it down. And i have lens correction on at the moment as well. I'm bad :-)
03-29-2011, 07:00 PM   #10
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Indeed a number of factors are at play.
Highlight correction, high ISO NR, slow shutter speed NR and lens correction are all each culprits of image review delay.
I too would rather the slight delay but keep the lens correction on particularly if I've got the 18-55 mounted...
SanDisk Extremes are excellent storage cards and are faster than most if not all cameras' write speed. That should not be your limiting factor.
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