Detecting dust on a DSLR sensor

In article , says...

The dust is not on the sensor. Its on the glass in front of
the sensor, well in front.

Why do then manufacturers recommend not to use a brush to remove the
dust giving as a reason that the sensor might be scratched?
--

Alfred Molon
------------------------------
Olympus 50X0, 8080, E3X0, E4X0, E5X0 and E3 forum at
http://tech.groups.yahoo.com/group/MyOlympus/
http://myolympus.org/ photo sharing site

In article , Alfred
Molon wrote:

In article , says...

The dust is not on the sensor. Its on the glass in front of
the sensor, well in front.

Why do then manufacturers recommend not to use a brush to remove the
dust giving as a reason that the sensor might be scratched?

they mean the glass can be scratched.

nospam wrote:
In article , Alfred
Molon wrote:

In article , says...

The dust is not on the sensor. Its on the glass in front of
the sensor, well in front.
Why do then manufacturers recommend not to use a brush to remove the
dust giving as a reason that the sensor might be scratched?

they mean the glass can be scratched.

And I think they exaggerate the danger. A wet cleaning seems just as
likely to drag a spec of diamond dust across the glass as a clean dry
nylon brush.

--
Paul Furman
www.edgehill.net
www.baynatives.com

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