K5 and slow preview image forming

**petetax** · 10-29-2011, 02:03 AM

This is a question about the speed an image shows in the screen after you have pressed the shutter and taken a shot.

I was looking through the menus on my K5 the other day and my have changed something by accident.
Now when I take a shot, it takes much longer to form a preview image on the screen than it used to.

(I always shoot in RAW)

I can't find a menu option that affects this and wondered if anybody had any ideas?

Its gone from sub second to 2-3 seconds.

hcc · 10-29-2011, 02:22 AM

When the image preview is slow, it means that you set up some in-camera post-processing (PP). Switch off all in-cmaera PP including lens distortion correction, High-ISO correction, ....

In doubt, reset the factory settings.

Hope that the comments may help.

**petetax** · 10-29-2011, 03:49 AM

Thanks - it was lens distortion correction I had ON.
I've turned it off and the preview forms as quick as I expected.

So now I know - I can play with this option and see what difference it makes.

jolepp · 10-29-2011, 04:09 AM

I suppose the distortion correction really applies to JPEGs but you get the delay even with RAW because the camera uses the JPEG engine to generate the thumbnail (low quality) JPEG embedded in the RAW.

10-29-2011, 02:03 AM	#1
petetax Site Supporter Join Date: Dec 2009 Location: Devon Photos: Gallery Posts: 40	K5 and slow preview image forming This is a question about the speed an image shows in the screen after you have pressed the shutter and taken a shot. I was looking through the menus on my K5 the other day and my have changed something by accident. Now when I take a shot, it takes much longer to form a preview image on the screen than it used to. (I always shoot in RAW) I can't find a menu option that affects this and wondered if anybody had any ideas? Its gone from sub second to 2-3 seconds.

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10-29-2011, 02:22 AM	#2
hcc Pentaxian Join Date: Nov 2009 Location: Brisbane, Australia Photos: Gallery \| Albums Posts: 4,002	When the image preview is slow, it means that you set up some in-camera post-processing (PP). Switch off all in-cmaera PP including lens distortion correction, High-ISO correction, .... In doubt, reset the factory settings. Hope that the comments may help.

10-29-2011, 03:49 AM	#3
petetax Site Supporter Join Date: Dec 2009 Location: Devon Photos: Gallery Posts: 40 Original Poster	Thanks - it was lens distortion correction I had ON. I've turned it off and the preview forms as quick as I expected. So now I know - I can play with this option and see what difference it makes.

10-29-2011, 04:09 AM	#4
jolepp Veteran Member Join Date: Oct 2010 Location: Finland Photos: Albums Posts: 3,196	I suppose the distortion correction really applies to JPEGs but you get the delay even with RAW because the camera uses the JPEG engine to generate the thumbnail (low quality) JPEG embedded in the RAW.