Sensor stains

Paschalis · 09-14-2011, 10:27 AM

Hello,
I have a K5, bought it before 3 months. After 1200 shots I found some stains (5 obvious, and another 4 very dim) dispersed in the frame. These were not existing when at the 1st day I examined how clear the sensor was.
Now, as the test shots were done in f/45 and in "normal" apertures (f9, f11, even f16) the stains are not visible (in f/32 they look like normal dust-spots), this is not a problem at all.
My question is, are these stains going to grow in intensity and (or) "population"? Your experience and opinions are highly welcomed.
Is it logical to send the camera back or wait and see if the stains become larger (more obvious in lower f numbers)?
Finally, I rarely use LiveView or Video (took only 3 short videos just from curiosity).
Thank you in advance,
Paschalis

Last edited by Paschalis; 09-14-2011 at 11:18 AM.

geezer52 · 09-14-2011, 10:44 AM

Do you mean you bought it three months ago? And I assume you bought it new. By most accounts the "stains" that were found in the early batches of K5s have been resolved but in case, there are many threads from that time that show exactly what they look like and basically what's causing them. Falk Lumo provided a pretty in depth analysis. F45 is pretty extreme. May I suggest posting examples of these spots and let some experienced eyes take a read on them. If they are not interfering with your normal shooting there's no immediate need to send it back unless you mean to send it back to the retailer for an exchange. If you are looking to exchange with the retailer it's hard to advise you not knowing their specific policies on returns.

JeffJS · 09-14-2011, 11:00 AM

Stains.

Dust

Make sure you actually Have stains...

Paschalis · 09-14-2011, 11:11 AM

Yes, I bought it brand new, serial number starting from 40.
The image with the guitar example is right. But the stains in my sensor are less and dispersed.
Unfortunately I can't upload samples!

bobmaxja · 09-14-2011, 02:45 PM

Big chance that Dust not stain

09-14-2011, 10:27 AM	#1
Paschalis New Member Join Date: Feb 2011 Location: Thessaloniki Posts: 14	Sensor stains Hello, I have a K5, bought it before 3 months. After 1200 shots I found some stains (5 obvious, and another 4 very dim) dispersed in the frame. These were not existing when at the 1st day I examined how clear the sensor was. Now, as the test shots were done in f/45 and in "normal" apertures (f9, f11, even f16) the stains are not visible (in f/32 they look like normal dust-spots), this is not a problem at all. My question is, are these stains going to grow in intensity and (or) "population"? Your experience and opinions are highly welcomed. Is it logical to send the camera back or wait and see if the stains become larger (more obvious in lower f numbers)? Finally, I rarely use LiveView or Video (took only 3 short videos just from curiosity). Thank you in advance, Paschalis Last edited by Paschalis; 09-14-2011 at 11:18 AM.

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09-14-2011, 10:44 AM	#2
geezer52 Senior Member Join Date: Jul 2009 Location: High Desert, California Photos: Gallery Posts: 231	Do you mean you bought it three months ago? And I assume you bought it new. By most accounts the "stains" that were found in the early batches of K5s have been resolved but in case, there are many threads from that time that show exactly what they look like and basically what's causing them. Falk Lumo provided a pretty in depth analysis. F45 is pretty extreme. May I suggest posting examples of these spots and let some experienced eyes take a read on them. If they are not interfering with your normal shooting there's no immediate need to send it back unless you mean to send it back to the retailer for an exchange. If you are looking to exchange with the retailer it's hard to advise you not knowing their specific policies on returns.

09-14-2011, 11:00 AM	#3
JeffJS Inactive Account Join Date: Aug 2008 Location: Michigan, USA Photos: Gallery \| Albums Posts: 7,484	Stains. Dust Make sure you actually Have stains...

09-14-2011, 11:11 AM	#4
Paschalis New Member Join Date: Feb 2011 Location: Thessaloniki Posts: 14 Original Poster	Yes, I bought it brand new, serial number starting from 40. The image with the guitar example is right. But the stains in my sensor are less and dispersed. Unfortunately I can't upload samples!

09-14-2011, 02:45 PM	#5
bobmaxja Veteran Member Join Date: Mar 2010 Location: Laval, Quebec Canada Posts: 2,171	Big chance that Dust not stain