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12-05-2013, 11:14 PM   #16
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QuoteOriginally posted by Canada_Rockies Quote
The last time I tried to clean the viewfinder it got worse.
same here, I took extra precautions to minimize airborne dust and removed the screen successfully and cleaned it. upon reinstallation, it slipped from my forceps, hit the floor, and received a permanent scratch. dangit!

12-07-2013, 02:00 PM   #17
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QuoteOriginally posted by calsan Quote
Having been fairly annoyed with this on my K10d, I decided to try not cleaning the sensor on my K-7 with a rocket blower.

I have only cleaned my K7 sensor with the official Pentax gummy wand. Result: I haven't had any dust in the viewfinder on this camera.
QED: dust must get inadvertently pushed into the viewfinder when cleaning with a blower.
I too believe the Giotto rocket blower is the culprit for the dust that gets transferred to above the focussing screen. I think folks are much better off using that Pentax gummy wand.
12-07-2013, 05:51 PM   #18
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QuoteOriginally posted by mjp29 Quote
I too believe the Giotto rocket blower is the culprit for the dust that gets transferred to above the focussing screen. I think folks are much better off using that Pentax gummy wand.
My Kr is going on four years of being well used, with regular Giottos rocket blower use. Not a single microscopic piece of dust anywhere in my baby.
But yet the K100d has caked on dust that the blower will not get rid of, but it was there before I came along.

I contend that the rocket blower is amazing, but if you have stubborn dust, a wipe or "q tip" would be the only choice.
12-08-2013, 01:08 AM   #19
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I've had my K-5 for over two years now, and I can't see any dust in the viewfinder. There is a couple of spots on the sensor, though.

12-08-2013, 01:45 AM   #20
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I have a K-5 and recently got a big spot on the viewfinder - I am thinking on trying the rocket blower, but a little scared to make it worse
12-08-2013, 02:20 AM   #21
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I bought a used k-m a while back... when I got it had an insect leg on the viewfinder... still does...
12-08-2013, 03:54 AM   #22
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QuoteOriginally posted by mjp29 Quote
I'm curious as to how many of you have some dust in the viewfinder area if you point your camera at a white wall.
I've had 4 Pentax cameras over the years (two k2000's, one k-x, and now a k-r), and 3/4th of them had some dust or small black plastic spec in the viewfinder or focussing screen.

This video shows how to clean the focussing screen, if you dare. I have not tried it.

K10D Changing your focusing screen. - YouTube
Yes, but being Pentax I assume it is pixie dust

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