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Re: [OM] Sensor-Great gobs of gunk--what next?

Subject: Re: [OM] Sensor-Great gobs of gunk--what next?
From: Wayne Shumaker <om3ti@xxxxxxxx>
Date: Mon, 25 Feb 2019 21:03:49 -0700
I spent quite a bit of time cleaning my original 5D sensor. I used Eclipse 
cleaning fluid (methanol). 
https://photosol.com/products/eclipse-optic-fluid/
and some PEC*PADs.  I wrapped pecpad around plastic credit card, cut to the 
size of the sensor.
With some fluid applied to the pads I would wipe from one side to the other in 
one single motion.
Then check for spots again with high F-Stop. The Canon had a fairly thick 
anti-alias filter, so needed the high F stop to see. This happened because some 
shutter lubricant splattered onto the sensor after I had left the camera in a 
hot car, then took some shots.
That website says that pec*pads are not recommend for cleaning sensors. They 
recommend the sensor swab. With the 5D I was cleaning the AA filter, so can't 
recommend this procedure.
The methanol evaporates quickly. I may have some of the swabs, they did not 
work as well for me.
The methanol may have shipping restrictions.

WayneS

At 2/25/2019 04:35 PM, you wrote:
>GM5 sensor accumulated  >80 pixel blobs.  I rocket blow the sensor before most 
>trips and have done so at least 3 times since these have shown up.
>Have canned air with reputation as having no issues--I know some don't like 
>this technique but if carefully done usually sensor clean as a whistle in a 
>flash.  No luck this time, but no worse either.  I can still see some of the 
>culprits with a sensor loupe. 
>They did not budge and can see them in the images.  I have one of those sensor 
>pens but haven't used in many moons.  I have not had to do a wet clean ever. I 
>can't image my brush would work for this and sometimes it makes the sensor 
>worse. 
>Wanted to check here before go off in uncharted territory.  Must fix this 
>soon.  
>
>All gunked up, Mike
>
>
> 
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