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06-11-2019, 01:16 PM - 1 Like   #1
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What is causing this?

I purchased a used K-1 from a forum member and everything seemed to work fine. I didn't really get a chance to try it out until recently. I travel for work and I always take a camera along with me because I never know what I am going to see. I was driving back home one evening and came across a group of paragliders flying over a freshly plowed field. I pulled over and put my Tamron AF 70-200mm f/2.8 (IF) Macro lens on the camera and started taking pictures. A couple days later I imported the pictures into Lightroom and noticed all the pictures have a curved dark line in the upper left corner. I figured I must have a problem with the lens and cleaned it. It still showed the line when I took pictures again. I then tried it on my K-70 and NO line. I then tried other lenses on the K-1 and there is a line to some degree using every lens.

Does anyone have an idea as to what is causing this and how to correct it? Any advice and help will be greatly appreciated. I'm hoping I haven't bought a dud as I rally like the camera. I am including some pictures to show the problem and one from my K-70 with no line.

The first picture is one of the paraglider using K-1 and Tamron 70-200mm 2.8.


The second picture is one using K-70 and Tamron 70-200mm 2.8 taken today.


The third picture is one using K-1 and Tamron 70-200mm 2.8 taken today.

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06-11-2019, 01:21 PM - 1 Like   #2
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It looks like hair on the sensor
06-11-2019, 01:22 PM - 1 Like   #3
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That looks like a hair on the sensor to me.
06-11-2019, 01:23 PM - 1 Like   #4
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QuoteOriginally posted by sergysergy Quote
It looks like hair on the sensor
How do I get it off?

---------- Post added 06-11-19 at 01:29 PM ----------

QuoteOriginally posted by Ttedders Quote
How do I get it off?
Thanks guys. That is what was causing the problem. I managed to blow it out with a bulb blower with no problem. Thanks again.

06-11-2019, 01:32 PM   #5
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One of the menu options should be "sensor cleaning". That will make the mirror go up. Then use a rocket blower. It should be easy
06-11-2019, 01:36 PM   #6
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A smiley on the sensor?
06-11-2019, 02:05 PM - 1 Like   #7
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QuoteOriginally posted by sergysergy Quote
One of the menu options should be "sensor cleaning". That will make the mirror go up. Then use a rocket blower. It should be easy
Thanks. That worked perfectly.
06-11-2019, 02:16 PM   #8
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awesome!

06-11-2019, 05:26 PM   #9
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You also have a dust spot in the upper right side. I like to take a picture of clear blue skies at f22 or as small of an aperture as my lens will go to hunt for dust bunnies on the sensor, it's the easiest way to find them. Rocket blower is usually enough to get them all off, but if not, more aggressive methods can be employed.
06-11-2019, 06:03 PM   #10
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QuoteOriginally posted by Kozlok Quote
f22 or as small of an aperture as my lens will go to hunt for dust bunnies on the sensor, it's the easiest way to find them.
Setting the 'dehaze' slider to maximum in software like Lightroom or DxO can also be helpful in revealing dust and dirt spots on existing shots.
06-12-2019, 01:11 PM   #11
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Thanks, I will definitely try both and see what happens.
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