Pentax K-3 Random Blurry Image Theory

**Mikesul** · 12-09-2013, 06:19 AM

Originally posted by klkitchens

I'm processing DNG from the K-3 in Lightroom just fine.

Do you need to fix white balance? Other raw converters seem fine with K3 dngs (if they recognize them) but Lightroom makes the white balance very green by default. A click on auto white balance is usually enough to fix it but it is annoying.

Mr Spocko · 12-09-2013, 08:24 AM

I saw this post on DPR with the image sharpness. I also watched Ed's youtube videos (quite enjoy them keep it up good stuff)
I think in recent years Pentax have ramped up the NR somewhat on jpegs, I almost always set NR to off and have done regardless of camera model.

Even if I use another maker's body NR off is almost always preferable to the auto or default NR.
I think the difference is more recent bodies are more aggressive with NR on jpegs.

Personally I shoot raw most of the time, but it's handy to use jpegs at times. Though some have noted Pentax are doing some fiddling with raw NR too (it seems to be mostly chroma noise)

klkitchens · 12-09-2013, 08:31 AM

Originally posted by Mikesul

Do you need to fix white balance? Other raw converters seem fine with K3 dngs (if they recognize them) but Lightroom makes the white balance very green by default. A click on auto white balance is usually enough to fix it but it is annoying.

I set my white balance to either Auto or custom in the camera and then apply it to all the images at once. But they tended more toward purple in the shoot I'm working now -- but there was a lot of red on stage (Christmas show)

kenyee · 12-09-2013, 08:48 AM

Originally posted by Tjompen1968

I would like to hear your take on the anti moiré function in regard to sharpness. I have, with my Tamron 90 and my Tamron 70-200, tried to see the difference between shots taken in "laboratory" fashion at home with the anti moiré set to Off, 1 and 2 but there is no visible difference so I guess I am doing the testing the wrong way or? I can hear the special noise the camera makes when applying the function. I have used slow shutter speeds i.e arround 1/125 at f3.2 /3.5 shooting greenish fabric.

Heavily depends on the fabric. Try something like a satin. I saw moire in that even w/ the K20D. The pattern density and your distance to it determines moire.

Or try photographing bird feathers...the feathers have varying pattern density. I saw this in a K-3 review (it's linked in the K-3 reviews thread in this forum) and it was surprisingly effective at showing moire...

Unregistered User · 12-09-2013, 08:53 AM

Well, the thing is that I was expecting a degredation of sharpness but there was no difference... That is why I ask.

kenyee · 12-09-2013, 12:49 PM

Originally posted by Tjompen1968

Well, the thing is that I was expecting a degredation of sharpness but there was no difference... That is why I ask.

There should be some...are you doing 100% crops?
If you're viewing a downsized image, you won't see as much..

Unregistered User · 12-09-2013, 02:46 PM

I am looking at 100% in Adobe Camera RAW at my DNGs so all settings are equal. I don´t see any difference so either it is not doing its job or my test is flawed...

kenyee · 12-09-2013, 03:14 PM

Originally posted by Tjompen1968

I am looking at 100% in Adobe Camera RAW at my DNGs so all settings are equal. I don´t see any difference so either it is not doing its job or my test is flawed...

Images taken on a sturdy tripod and SR disabled? Not sure if it'll look the same w/ SR on or off? Or if you're handholding, are you taking shots in bright light w/ a high shutter speed?

lister6520 · 12-09-2013, 03:38 PM

As many already said LR 4.4 seems to handle the K-3 DNGs just fine without the K-3 profile.

What is not clear to me is what differences/improvements should I expect once they make the K-3 specific profile?

In a previous discussion it was pointed out that it would load and display images quicker and generally work more efficiently. However in terms of the image quality what differences should we expect?

kamayok3 · 01-03-2014, 11:47 PM

Hi, I am also having this blurry problem in my K-3. But I think I just found out a quick solution on this problem. Let me write down my solution:

1. Under HIgh-ISO NR option, choose CUSTOM.
2. Then under Setting:

ISO100 OFF
ISO200 OFF
ISO400 OFF
ISO800 OFF
ISO1600 LOW
ISO3200 LOW
ISO6400 LOW
ISO12800 MEDIUM
ISO25600 MEDIUM
ISO51200 MEDIUM

With this setup, I manage to get sharp image even up to ISO6400. Have a try..... No harm!

Regards,

Tommy

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pentax K-3 image detail	Painter	Pentax K-3 & K-3 II	3	11-09-2013 11:49 AM
another new image of K-3!?	avio	Pentax News and Rumors	490	10-07-2013 08:27 AM
New image of K-3!?	Unregistered	Pentax News and Rumors	538	10-06-2013 03:42 PM
Latest FF K-3 leaked Image?	Clinton	General Talk	16	09-14-2012 06:00 AM
K20 - random blurry frames	photobydale	Pentax DSLR Discussion	9	06-13-2012 07:10 AM

12-09-2013, 06:19 AM	#16
Mikesul Loyal Site Supporter Join Date: Sep 2009 Location: Phoenix, AZ Posts: 7,594	Originally posted by klkitchens I'm processing DNG from the K-3 in Lightroom just fine. Do you need to fix white balance? Other raw converters seem fine with K3 dngs (if they recognize them) but Lightroom makes the white balance very green by default. A click on auto white balance is usually enough to fix it but it is annoying.

12-09-2013, 08:24 AM	#17
Mr Spocko Senior Member Join Date: Dec 2011 Posts: 254	I saw this post on DPR with the image sharpness. I also watched Ed's youtube videos (quite enjoy them keep it up good stuff) I think in recent years Pentax have ramped up the NR somewhat on jpegs, I almost always set NR to off and have done regardless of camera model. Even if I use another maker's body NR off is almost always preferable to the auto or default NR. I think the difference is more recent bodies are more aggressive with NR on jpegs. Personally I shoot raw most of the time, but it's handy to use jpegs at times. Though some have noted Pentax are doing some fiddling with raw NR too (it seems to be mostly chroma noise)

12-09-2013, 08:31 AM	#18
klkitchens Veteran Member Join Date: Oct 2011 Location: Allanta, GA Photos: Gallery \| Albums Posts: 480	Originally posted by Mikesul Do you need to fix white balance? Other raw converters seem fine with K3 dngs (if they recognize them) but Lightroom makes the white balance very green by default. A click on auto white balance is usually enough to fix it but it is annoying. I set my white balance to either Auto or custom in the camera and then apply it to all the images at once. But they tended more toward purple in the shoot I'm working now -- but there was a lot of red on stage (Christmas show)

12-09-2013, 08:48 AM	#19
kenyee Veteran Member Join Date: Mar 2007 Location: Boston, PRofMA Photos: Albums Posts: 3,026	Originally posted by Tjompen1968 I would like to hear your take on the anti moiré function in regard to sharpness. I have, with my Tamron 90 and my Tamron 70-200, tried to see the difference between shots taken in "laboratory" fashion at home with the anti moiré set to Off, 1 and 2 but there is no visible difference so I guess I am doing the testing the wrong way or? I can hear the special noise the camera makes when applying the function. I have used slow shutter speeds i.e arround 1/125 at f3.2 /3.5 shooting greenish fabric. Heavily depends on the fabric. Try something like a satin. I saw moire in that even w/ the K20D. The pattern density and your distance to it determines moire. Or try photographing bird feathers...the feathers have varying pattern density. I saw this in a K-3 review (it's linked in the K-3 reviews thread in this forum) and it was surprisingly effective at showing moire...

12-09-2013, 08:53 AM	#20
Unregistered User Guest	Well, the thing is that I was expecting a degredation of sharpness but there was no difference... That is why I ask.

12-09-2013, 12:49 PM	#21
kenyee Veteran Member Join Date: Mar 2007 Location: Boston, PRofMA Photos: Albums Posts: 3,026	Originally posted by Tjompen1968 Well, the thing is that I was expecting a degredation of sharpness but there was no difference... That is why I ask. There should be some...are you doing 100% crops? If you're viewing a downsized image, you won't see as much..

12-09-2013, 02:46 PM	#22
Unregistered User Guest	I am looking at 100% in Adobe Camera RAW at my DNGs so all settings are equal. I don´t see any difference so either it is not doing its job or my test is flawed...

12-09-2013, 03:14 PM	#23
kenyee Veteran Member Join Date: Mar 2007 Location: Boston, PRofMA Photos: Albums Posts: 3,026	Originally posted by Tjompen1968 I am looking at 100% in Adobe Camera RAW at my DNGs so all settings are equal. I don´t see any difference so either it is not doing its job or my test is flawed... Images taken on a sturdy tripod and SR disabled? Not sure if it'll look the same w/ SR on or off? Or if you're handholding, are you taking shots in bright light w/ a high shutter speed?

12-09-2013, 03:38 PM	#24
lister6520 Veteran Member Join Date: May 2012 Posts: 733	As many already said LR 4.4 seems to handle the K-3 DNGs just fine without the K-3 profile. What is not clear to me is what differences/improvements should I expect once they make the K-3 specific profile? In a previous discussion it was pointed out that it would load and display images quicker and generally work more efficiently. However in terms of the image quality what differences should we expect?

01-03-2014, 11:47 PM	#25
kamayok3 Forum Member Join Date: Apr 2010 Posts: 90	Hi, I am also having this blurry problem in my K-3. But I think I just found out a quick solution on this problem. Let me write down my solution: 1. Under HIgh-ISO NR option, choose CUSTOM. 2. Then under Setting: ISO100 OFF ISO200 OFF ISO400 OFF ISO800 OFF ISO1600 LOW ISO3200 LOW ISO6400 LOW ISO12800 MEDIUM ISO25600 MEDIUM ISO51200 MEDIUM With this setup, I manage to get sharp image even up to ISO6400. Have a try..... No harm! Regards, Tommy