K-1 white dot issue. ?

MJKoski · 08-30-2016, 12:04 AM

Kuva-Järvinen in Salo.

JBox · 08-30-2016, 08:58 AM

Originally posted by MJKoski

All right, my dealer informed me that my camera should be sent to service. That was the reply from Pentax technicians after seeing the skellie crop. They will replace the whole sensor unit if that is needed.

Please keep us updated on how this goes. I just discovered last week that my K-1 has the same white-dot LE noise as the others here. I can post dark-frame DNG's if people are interested. They look the same as many already in this thread.

My K-1's info as others have posted:
DSP Firmware Version: 1.20.21.09
Production Code: 2.1
Manufacture Date: 2016:04:13

Does anyone know if those of us in the USA would need to go through a dealer for this kind of service, or do we go directly to Ricoh? I bought my K-1 from B&H. Luckily I have not had to deal with Pentax/Ricoh repair in awhile.

D1N0 · 08-30-2016, 09:10 AM

Originally posted by JBox

Does anyone know if those of us in the USA would need to go through a dealer for this kind of service,

Ricoh Imaging Americas Corporation - Service & Repair

stevebrot · 08-30-2016, 11:32 AM

Originally posted by JBox

Does anyone know if those of us in the USA would need to go through a dealer for this kind of service, or do we go directly to Ricoh? I bought my K-1 from B&H. Luckily I have not had to deal with Pentax/Ricoh repair in awhile.

How long have you owned the camera? If less than a month, you dealer is your best resource if you believe you have a defective product. Most will assist you with troubleshooting and will generally offer a no-hassle exchange.

Steve

ZeGaby · 08-30-2016, 11:39 AM

I've made some new test with my camera.
Noise reduction off, do you think my K-1 is affected by the White dots ?

White Dots Samyang 8mm Fisheye

Unregistered User · 08-30-2016, 11:40 AM

Originally posted by ZeGaby

I've made some new test with my camera.
Noise reduction off, do you think my K-1 is affected by the White dots ?

White Dots Samyang 8mm Fisheye

I would say yes.

tabugman · 08-30-2016, 01:04 PM

I have the exact same issue: lots and lots of hot pixels during long exposures. It's a really bad issue, regardless of what some people here claim. My Nikon D600 never had these issues.

I've contacted the Ricoh service center here in Sweden to see if this is something they have heard of and has a fix for.

Unregistered User · 08-30-2016, 01:46 PM

Originally posted by tabugman

I have the exact same issue: lots and lots of hot pixels during long exposures. It's a really bad issue, regardless of what some people here claim. My Nikon D600 never had these issues.

I've contacted the Ricoh service center here in Sweden to see if this is something they have heard of and has a fix for.

Keep us posted on what the Swedes say...

disconnekt · 08-30-2016, 02:10 PM - **1 Like**

Just read this on Pentaxrumors, they put a link there of someone talking about it more:

Pentax K1 White Dot Issue on Longer Exposures–Same as the other cameras using the Sony 36MP chip @ Photos Of Arkansas

Class A · 08-30-2016, 03:57 PM

Originally posted by disconnekt

Just read this on Pentaxrumors, they put a link there of someone talking about it more:

Thanks for sharing.

Interesting that C1 (Capture One by Phase One) is able to get rid of the white dots through "single pixel noise reduction".

PhilRich · 08-30-2016, 06:38 PM

I just now ran across this thread. I am having the white dot problem with my K-1. At first I thought is was hot pixels. The problem shows up clearly when I use the fish eye for astro photography. Lots of white dots!!

banep · 08-30-2016, 08:32 PM

Originally posted by ZeGaby

I've made some new test with my camera.
Noise reduction off, do you think my K-1 is affected by the White dots ?

White Dots Samyang 8mm Fisheye

80% yes.
I'm not 100% sure because I don't know what kind of camera/computer processing is applied on those files, but those bright white dots outside of the sky doesn't looks like random noise.
If you upload raw file I'll give you answer with 100% accuracy.

awscreo · 08-30-2016, 09:58 PM

I'm still not sure if newly manufactured cameras have this issue. I think I'll just get the camera tomorrow and hope (cross fingers, pray, meditate, do a sacrifice to the older gods) issue is either not there, or its small enough to ignore.

banep · 08-30-2016, 11:23 PM

Originally posted by awscreo

I'm still not sure if newly manufactured cameras have this issue. I think I'll just get the camera tomorrow and hope (cross fingers, pray, meditate, do a sacrifice to the older gods) issue is either not there, or its small enough to ignore.

“Also, according to a 1997 U.S. Supreme Court case, you cannot prosecute for animal sacrifice unless they were killed inhumanely.”

For more details read Rooster rituals and sacrifices in various cultures and since ancient times | JAPANESE MYTHOLOGY & FOLKLORE

You simply can't find more appropriate readings for today

D1N0 · 08-31-2016, 12:39 AM

Well maybe people should use the long exposure nr when they are taking long exposures.

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08-30-2016, 12:04 AM	#76
MJKoski Veteran Member Join Date: Aug 2016 Posts: 1,784	Kuva-Järvinen in Salo.

08-30-2016, 08:58 AM	#77
JBox Senior Member Join Date: Aug 2011 Location: Michigan Posts: 109	Originally posted by MJKoski All right, my dealer informed me that my camera should be sent to service. That was the reply from Pentax technicians after seeing the skellie crop. They will replace the whole sensor unit if that is needed. Please keep us updated on how this goes. I just discovered last week that my K-1 has the same white-dot LE noise as the others here. I can post dark-frame DNG's if people are interested. They look the same as many already in this thread. My K-1's info as others have posted: DSP Firmware Version: 1.20.21.09 Production Code: 2.1 Manufacture Date: 2016:04:13 Does anyone know if those of us in the USA would need to go through a dealer for this kind of service, or do we go directly to Ricoh? I bought my K-1 from B&H. Luckily I have not had to deal with Pentax/Ricoh repair in awhile.

08-30-2016, 09:10 AM	#78
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	Originally posted by JBox Does anyone know if those of us in the USA would need to go through a dealer for this kind of service, Ricoh Imaging Americas Corporation - Service & Repair

08-30-2016, 11:32 AM	#79
stevebrot Otis Memorial Pentaxian Join Date: Mar 2007 Location: Vancouver (USA) Photos: Gallery \| Albums Posts: 42,007	Originally posted by JBox Does anyone know if those of us in the USA would need to go through a dealer for this kind of service, or do we go directly to Ricoh? I bought my K-1 from B&H. Luckily I have not had to deal with Pentax/Ricoh repair in awhile. How long have you owned the camera? If less than a month, you dealer is your best resource if you believe you have a defective product. Most will assist you with troubleshooting and will generally offer a no-hassle exchange. Steve

08-30-2016, 11:39 AM	#80
ZeGaby Pentaxian Join Date: Jul 2014 Photos: Gallery Posts: 308	I've made some new test with my camera. Noise reduction off, do you think my K-1 is affected by the White dots ? White Dots Samyang 8mm Fisheye

08-30-2016, 11:40 AM	#81
Unregistered User Guest	Originally posted by ZeGaby I've made some new test with my camera. Noise reduction off, do you think my K-1 is affected by the White dots ? White Dots Samyang 8mm Fisheye I would say yes.

08-30-2016, 01:04 PM	#82
tabugman New Member Join Date: Jul 2016 Posts: 7	I have the exact same issue: lots and lots of hot pixels during long exposures. It's a really bad issue, regardless of what some people here claim. My Nikon D600 never had these issues. I've contacted the Ricoh service center here in Sweden to see if this is something they have heard of and has a fix for.

08-30-2016, 01:46 PM	#83
Unregistered User Guest	Originally posted by tabugman I have the exact same issue: lots and lots of hot pixels during long exposures. It's a really bad issue, regardless of what some people here claim. My Nikon D600 never had these issues. I've contacted the Ricoh service center here in Sweden to see if this is something they have heard of and has a fix for. Keep us posted on what the Swedes say...

08-30-2016, 02:10 PM - 1 Like	#84
disconnekt Pentaxian Join Date: Oct 2011 Location: SoCal/I.E. Photos: Albums Posts: 1,701	Just read this on Pentaxrumors, they put a link there of someone talking about it more: Pentax K1 White Dot Issue on Longer Exposures–Same as the other cameras using the Sony 36MP chip @ Photos Of Arkansas

08-30-2016, 03:57 PM	#85
Class A Pentaxian Join Date: Aug 2008 Location: Wellington, New Zealand Posts: 11,251	Originally posted by disconnekt Just read this on Pentaxrumors, they put a link there of someone talking about it more: Thanks for sharing. Interesting that C1 (Capture One by Phase One) is able to get rid of the white dots through "single pixel noise reduction".

08-30-2016, 06:38 PM	#86
PhilRich Senior Member Join Date: Apr 2015 Location: Western Washington Posts: 204	I just now ran across this thread. I am having the white dot problem with my K-1. At first I thought is was hot pixels. The problem shows up clearly when I use the fish eye for astro photography. Lots of white dots!!

08-30-2016, 08:32 PM	#87
banep Banned Join Date: Mar 2013 Posts: 360	Originally posted by ZeGaby I've made some new test with my camera. Noise reduction off, do you think my K-1 is affected by the White dots ? White Dots Samyang 8mm Fisheye 80% yes. I'm not 100% sure because I don't know what kind of camera/computer processing is applied on those files, but those bright white dots outside of the sky doesn't looks like random noise. If you upload raw file I'll give you answer with 100% accuracy.

08-30-2016, 09:58 PM	#88
awscreo Veteran Member Join Date: May 2016 Photos: Gallery \| Albums Posts: 2,722	I'm still not sure if newly manufactured cameras have this issue. I think I'll just get the camera tomorrow and hope (cross fingers, pray, meditate, do a sacrifice to the older gods) issue is either not there, or its small enough to ignore.

08-30-2016, 11:23 PM	#89
banep Banned Join Date: Mar 2013 Posts: 360	Originally posted by awscreo I'm still not sure if newly manufactured cameras have this issue. I think I'll just get the camera tomorrow and hope (cross fingers, pray, meditate, do a sacrifice to the older gods) issue is either not there, or its small enough to ignore. “Also, according to a 1997 U.S. Supreme Court case, you cannot prosecute for animal sacrifice unless they were killed inhumanely.” For more details read Rooster rituals and sacrifices in various cultures and since ancient times \| JAPANESE MYTHOLOGY & FOLKLORE You simply can't find more appropriate readings for today

08-31-2016, 12:39 AM	#90
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	Well maybe people should use the long exposure nr when they are taking long exposures.