CCD dust imaging

p.110 of Maxxum 7D manual: "The DiMAGE Master software can remove the affects of
dust from RAW images. This is done by taking a dust reference image before
cleaning the CCD. For more on this process, see the DiMAGE Master manual."

-has anyone tried this?

-do other cameras (Canon, Nikon...) have this feature?

Cheers,
Alan


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Hi Alan
Please note I have NO experience in this field - my wife has a D70 and we
are both still learning BUT - today I was looking at this
http://www.bythom.com/cleaning.htm
You may find the reference useful?
Regards
RobO

On Tue, 14 Dec 2004 16:38:06 -0500, Alan Browne
wrote:



p.110 of Maxxum 7D manual: "The DiMAGE Master software can remove the affects of
dust from RAW images. This is done by taking a dust reference image before
cleaning the CCD. For more on this process, see the DiMAGE Master manual."

-has anyone tried this?

-do other cameras (Canon, Nikon...) have this feature?

Cheers,
Alan

This is like taking a dark frame to reference hot pixels then
subtracting them out from long exposure images.
-Rich

Alan Browne wrote:
p.110 of Maxxum 7D manual: "The DiMAGE Master software can remove the
affects of dust from RAW images. This is done by taking a dust
reference image before cleaning the CCD. For more on this process,
see the DiMAGE Master manual."

I haven't even been able to find a source for the Dimage Master
software... it's not the same as the Dimage Viewer s/w that ships with
the 7D from what I have read...

What I have been doing here since I've already run into dust problems
with my 7D (we've had the mortar replacement project from hell going on
at our building for over six months now...) is to set the smallest
f/stop and take an out of focus shot of a blank wall. The small f/stop
helps make the dust shadows shaper and more contrasty, as they are
sitting on the cover layer a bit above the actual CCD.

I review the shot either in the LCD or on the computer to see where the
crud has settled, put the 7D into CCD clean mode, and go after it with a
gentle squeeze blower, keeping in mind that the crud's location will be
flipped and reversed as you view the CCD - my eyes are bad enough that I
can't see the actual crud on the sensor as I clean it, so I usually
repeat the above steps to be sure I got it all.

Bob ^,,^

Has anyone found the info on a tacky probe made for sensor cleaning that was
just tacky just enough to pick up dust but did not leave any residue behind.



"Bob Harrington" wrote in message
...
Alan Browne wrote:
p.110 of Maxxum 7D manual: "The DiMAGE Master software can remove the
affects of dust from RAW images. This is done by taking a dust
reference image before cleaning the CCD. For more on this process,
see the DiMAGE Master manual."

I haven't even been able to find a source for the Dimage Master
software... it's not the same as the Dimage Viewer s/w that ships with
the 7D from what I have read...

What I have been doing here since I've already run into dust problems
with my 7D (we've had the mortar replacement project from hell going on
at our building for over six months now...) is to set the smallest
f/stop and take an out of focus shot of a blank wall. The small f/stop
helps make the dust shadows shaper and more contrasty, as they are
sitting on the cover layer a bit above the actual CCD.

I review the shot either in the LCD or on the computer to see where the
crud has settled, put the 7D into CCD clean mode, and go after it with a
gentle squeeze blower, keeping in mind that the crud's location will be
flipped and reversed as you view the CCD - my eyes are bad enough that I
can't see the actual crud on the sensor as I clean it, so I usually
repeat the above steps to be sure I got it all.

Bob ^,,^

"Robert" wrote in message
news:64Zvd.188579$5K2.67242@attbi_s03...
Has anyone found the info on a tacky probe made for sensor cleaning that
was
just tacky just enough to pick up dust but did not leave any residue
behind.

--------------
I suggest that you read the information in these links before you do
attempt sensor cleaning.

luminous-landscape.com/essays/sensor-cleaning.shtml
www.cleaningdigitalcameras.com/

photography.about.com/library/weekly/aa122903c.htm

http://www.pictureline.com/digital/d...ons/index.html

Regards,

Don F

"Robert" wrote in message
news:64Zvd.188579$5K2.67242@attbi_s03...
Has anyone found the info on a tacky probe made for sensor cleaning that
was
just tacky just enough to pick up dust but did not leave any residue
behind.

--------------
I forgot to include this link which you might find useful.

http://robgalbraith.com/bins/content...id=7-6460-7296

Don F

RobO wrote:

Hi Alan
Please note I have NO experience in this field - my wife has a D70 and we
are both still learning BUT - today I was looking at this
http://www.bythom.com/cleaning.htm
You may find the reference useful?

Yes indeed. Thanks,
Alan


--
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
-- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: there's no such thing as a FreeLunch.

RichA wrote:

On Tue, 14 Dec 2004 16:38:06 -0500, Alan Browne
wrote:



p.110 of Maxxum 7D manual: "The DiMAGE Master software can remove the affects of
dust from RAW images. This is done by taking a dust reference image before
cleaning the CCD. For more on this process, see the DiMAGE Master manual."

-has anyone tried this?

-do other cameras (Canon, Nikon...) have this feature?


This is like taking a dark frame to reference hot pixels then
subtracting them out from long exposure images.

I understand _what_ it is.

I'm wondering about how good it is in application and whether other vendors have
the same feature (per other replies so far, the D70 supports this).

Cheers,
Alan


--
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
-- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: there's no such thing as a FreeLunch.

Bob Harrington wrote:

flipped and reversed as you view the CCD - my eyes are bad enough that I
can't see the actual crud on the sensor as I clean it, so I usually
repeat the above steps to be sure I got it all.

I think the wipe method might be better, esp on very fine dust. See the RobO post.

Cheers,
Alan

--
-- r.p.e.35mm user resource: http://www.aliasimages.com/rpe35mmur.htm
-- r.p.d.slr-systems: http://www.aliasimages.com/rpdslrsysur.htm
-- [SI] gallery & rulz: http://www.pbase.com/shootin
-- e-meil: there's no such thing as a FreeLunch.