Ping PeterN: Sensor dust

"PeterN" wrote in message
...
On 9/11/2014 6:19 PM, Savageduck wrote:
I know you take your competition entries seriously, but you just seem
to
ignore basic maintenance such as cleaning sensor dust. That is
something
you really need to take care of as there is only so much you can fix
in
post.
If you don't see the dust spots, particularly in color fields such as
sky, that doesn't mean that other folks can't see them. Since you are
happy using ACR, select the *Spot Removal* tool and check the
*Visualize
Spots* check box, and bump the zoom up to 100%.
https://dl.dropbox.com/u/1295663/FileChute/screenshot_897.jpg
If you inspect the sensor, those dust spots should be in the bottom
right corner, but I suspect your contamination is spread further than
that.

I have to ask, after all this time and experience you have with
DSLRs,
do you ever clean your camera's sensor?
...or should I say, have you ever cleaned any DSLR sensor? If not you
really need to learn how to do it. Either that or pay for regular
cleaning by whoever works on your cameras. If they charge you for
sensor
cleaning, trust, but verify. Shoot wide open at a good monochrome
color
field target and check that the spots are gone.

If you want information on cleaning tools just ask.


\
Thanks. You are not wrong. I have a bad habit of not cleaning my
sensor. In fact the last time my sensor was cleaned was a few years
ago, on my D300, and PAS did it for me.

I remember that day well. One fellow brought me his full-frame camera
to clean and I was horrified when I put my sensor scope on it and looked
at the sensor. I have never seen such a filthy sensor and doubt anyone
reading this would ever see one filthier. I took the scope off and
could see a lot of dust.

The in-camera dust shakers can be effective but are not a guarantee. My
7D gets dust on it occasionally that I have to clean off. My Sigma
DSLRs have a dust protector on them but it doesn't keep internal dust
from getting on the sensor and they require a cleaning once-in-a-while.