k-5 write speed

qh187 · 03-07-2011, 04:24 PM

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.

vincechu · 03-07-2011, 05:15 PM

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.

Wheatfield · 03-07-2011, 06:17 PM

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.

velingara · 03-07-2011, 06:46 PM

Probably some sort of in-camera processing- lens correction or what not that is slowing you down...

Wheatfield · 03-07-2011, 07:41 PM

Originally posted by velingara

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.

Spotmatic · 03-28-2011, 03:42 AM

Originally posted by Wheatfield

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.

Gimbal · 03-28-2011, 03:49 AM

How long is "a while"?
I haven't noticed any delay as long as I stay at iso 1600 or lower.

Gimbal · 03-28-2011, 03:52 AM

Originally posted by Spotmatic

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.

philbaum · 03-28-2011, 01:26 PM

Originally posted by qh187

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 :-)

**Ash** · 03-29-2011, 07:00 PM

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.

03-07-2011, 04:24 PM	#1
qh187 New Member Join Date: Nov 2007 Posts: 8	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.

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03-07-2011, 05:15 PM	#2
vincechu Forum Member Join Date: Jan 2011 Posts: 74	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
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,986	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
velingara New Member Join Date: Mar 2010 Location: United States Posts: 15	Probably some sort of in-camera processing- lens correction or what not that is slowing you down...

03-07-2011, 07:41 PM	#5
Wheatfield Moderator Join Date: Apr 2008 Location: The wheatfields of Canada Posts: 15,986	Originally posted by velingara 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
Spotmatic Senior Member Join Date: Aug 2007 Location: Ft. Myers Florida Posts: 169	Originally posted by Wheatfield 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
Gimbal Pentaxian Join Date: Apr 2007 Location: Sweden Posts: 2,106	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
Gimbal Pentaxian Join Date: Apr 2007 Location: Sweden Posts: 2,106	Originally posted by Spotmatic 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
philbaum Veteran Member Join Date: Oct 2007 Location: Port Townsend, Washington State, USA Posts: 3,659	Originally posted by qh187 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
Ash Loyal Site Supporter Join Date: Mar 2007 Location: Toowoomba, Queensland Photos: Gallery \| Albums Posts: 23,920	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.