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Re: [OM] Nathan's PAD 24/11/2019: sensor cleaning

Subject: Re: [OM] Nathan's PAD 24/11/2019: sensor cleaning
From: Wayne Shumaker <om3ti@xxxxxxxx>
Date: Tue, 26 Nov 2019 17:02:58 -0800
I once left my 5D in the warm car one afternoon. After use it had "gunk" on the 
sensor that would not blow off. I believe the heat loosened some oil/lubricant 
from the shutter, which then landed on the sensor.  It took multiple passes 
with Eclipse alcohol and pecpads wrapped around cut credit card as a swab. I 
have never left a camera in the car again. But I did learn how to clean a 
sensor.

My caution using a camera that is very warm. One more advantage for living in 
Alaska.

WayneS

At 11/26/2019 08:04 AM, you wrote:

>Good idea, Jan ­ about the orientation.  
>
>But my thinkking was that grime might build up, rather than dust; there might 
>be a film of muck on the surface, much like youâ??d find on the inside of your 
>carâ??s windscreen/shield. I realise that it doesnâ??t get as much exposure as 
>your carâ??s glass, of course . . .
>
>Chris
>
>> On 25 Nov 2019, at 16:39, Jan Steinman <jan@xxxxxxxxxxxxxx> wrote:
>> 
>>> From: Chris Barker <ftog@xxxxxxxxxxxxxx <mailto:ftog@xxxxxxxxxxxxxx> 
>>> <mailto:ftog@xxxxxxxxxxxxxx <mailto:ftog@xxxxxxxxxxxxxx>>>
>>> 
>>> I wonder if sensors generally would benefit from a periodic clean to remove 
>>> grime that must build up during normal use
>> 
>> I'm pretty happy with Olympus's in-camera sensor cleaning, which they 
>> pioneered in the 4/3rds days. I don't know if other manufacturers have 
>> gotten around their patent or not.
>> 
>> Occasionally, I'll see evidence of something on the sensor. I cycle the 
>> power a couple times, with the camera oriented in the normal position, and 
>> it's gone. So I have NEVER cleaned a sensor, nor had one cleaned, in some 
>> two decades!
>> 
>> Note that if you are in the habit of turning the camera on while it lies on 
>> it's back, the ultrasonic cleaning will not work. Or if you turn it on 
>> lens-down, the dust will come off, but will fall right back. You need to 
>> turn it on with the camera base-down, so the dust shaken off hits the sticky 
>> tape.
>> 
>> Jan
>
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