dust under low pass filter?

gtc

just picked up my canon 20d from its first clean and I have been told that some dust has found its way under the low pass filter covering the sensor,and that it will be a major job to remove it.

this sounds like a warranty claim.has anyone else had this problem?

pathfinder

I've not heard of this, but it may be possible if they are not sealed together in some way. So you see the motes in your images?? If they are directly on the sensor, I would think that they will be sharply outlined in your images, unlike dust motes on the front of the filter covering the sensor which are more noticealbe with very small aperatures than wider open aperatures.

ian408

It's possible but I would guess unlikely unless you're using canned air or
a rocket blower too close to the sensor.

Ian

pathfinder

ian408 wrote:

It's possible but I would guess unlikely unless you're using canned air or
a rocket blower too close to the sensor.

Ian

Good point - no canned air!!