Question about sensor cleaning ...

[hark]

If oil has built up enough on the sensor that it cant be cleaned off, then I can see why they would replace the sensor too ...

But isn't there a low-pass filter over top of the sensor?

 

[Ruidoso Bill]

I only do wet cleaning, sensor swabs type 3 for full frame and Eclipse. I have done it this way for many years, no problems. I clean my bodies every week or so, I hate dust specks. Make sure you have a good loupe to see what you are doing.

https://www.youtube.com/watch?v=gouSOlgvQg0

 

[Bukitimah]

Yeah it is actually quite simple to us the sensor swab. Just ensure the environment is clean and not windy, swab is clean without any sharp object. Go over the sensor in a clean single swap and back. Less than a minute and it is done!

In the video, that guy is just showing how extreme you could go for the sensor abuse. In normal case, i am sure you aren't going to treat your camera that way. So, it is quite safe.