I blew out the sensor on my 20D yesterday before going on a shoot and thought I had gotten out all the dust, but andy found a couple of specs on one of my images.

So the question is...if the dots show up in the upper left of an image, where on the sensor are those located? Intuitively, I would think the upper right of the sensor, while looking in the lens mount. But, are images upside down and/or reversed? Just want to know where to look for the offenders.

Confused in the valley,
fish

Originally Posted by fish I blew out the sensor on my 20D yesterday before going on a shoot and thought I had gotten out all the dust, but andy found a couple of specs on one of my images. So the question is...if the dots show up in the upper left of an image, where on the sensor are those located? Intuitively, I would think the upper right of the sensor, while looking in the lens mount. But, are images upside down and/or reversed? Just want to know where to look for the offenders. Confused in the valley, fish

If you could look through the back of the camera/sensor your image would be upside down and flipped horizontally. Imagine in photoshop the image is correct, though the back of the camera you would just do a 180 deg rotate.

I would think the dust in your case would be in the lower left of the sensor as you look into the front of the camera.

FWIW, my experience is that using a blower just rearranges the dust. I've tried many times, including with the addition of a hand-held vacuum cleaner. I've since concluded that the sensor itself has to be wiped down. I've used the dry brush method once, and it seemed to work.

www.pbase.com/copperhill

oh and fish, i have the same trouble feeding letterhead or photo paper into a printer

Copperhill method is the best. Nuf said.
Richard

Has anyone tried the sensor brush?

I've read good things so far.

Some reading Material
Luminous Landscape Review
Product Homepage
Rob Galbraith Review.

The price has kept me away so far.

Dave

oh geez...it may just be easier to keep cloning them out of sky shots. This is fugly.





I guess that's just one of the perils of swapping lenses.

Originally Posted by fish oh geez...it may just be easier to keep cloning them out of sky shots. This is fugly. I guess that's just one of the perils of swapping lenses.

i agree with waxilodeon, the blower blows. get some eclipse, and a spatula and wipes from copperhill, and do it proper. usually one or two swipes is all it takes.

and no more fugly!

Originally Posted by andy i agree with waxilodeon, the blower blows. get some eclipse, and a spatula and wipes from copperhill, and do it proper. usually one or two swipes is all it takes. and no more fugly!

another dumb question...is the sensor (22.5 x 15.0mm) on the 20D? I just went to the eclipse site...need to know which sensor size to order 14, 16 or 18mm
thanks

Originally Posted by andy i agree with waxilodeon, the blower blows. get some eclipse, and a spatula and wipes from copperhill, and do it proper. usually one or two swipes is all it takes. and no more fugly!

I just turned the body upside down, gave it a big honkin' blowjob with the Giotto rocket, snapped a sky shot, and boom! All the spots are still there.

Another solution is to not shoot sky at f29.

I read a bunch of reviews on the Sensor Brush...sounds like a miracle. But $90 USD for two paint brushes?!

Originally Posted by dkapp Has anyone tried the sensor brush? I've read good things so far. Some reading Material Luminous Landscape Review Product Homepage Rob Galbraith Review. The price has kept me away so far. Dave

The sensor brush is the only thing that touches my sensor.
Yeah its pricey,but it will last a long time.I been through swab method,bolwing etc.The brush WINS hands down.
If it gets junk on it that the brush wont pull off,then yeah a wet method.I clean it every 2 weeks or so and havent needed to do that.

Originally Posted by MHJS The sensor brush is the only thing that touches my sensor. Yeah its pricey,but it will last a long time.I been through swab method,bolwing etc.The brush WINS hands down. If it gets junk on it that the brush wont pull off,then yeah a wet method.I clean it every 2 weeks or so and havent needed to do that.

ordered.

I like the copperhill method for two reasons:

1) It has done a perfect job so far for me on the sensor cleaning part.
2) You can use the same pads & fluid on your lenses. I have been way happier with the Pekpads & Eclipse for cleaning my glass. Not sure what's different about the Pads (or the Eclipse for that matter), but cleaning has been noticably better than the standard stuff sold in my local photo stores.

I hadn't even heard about the Sensor Brush until I saw a local news report! It turns out I work just a few blocks away from them. It is a little pricey, but when you consider how much a lot of us have invested in our gear, I don't think it's a lot to pay ...

That being said, I already have a method that is working just fine, so no need to change.

My 2 cents.

Brad

Originally Posted by fish ordered.

you spend money like a sailor just in port after six months at sea


... said the pot to the kettle ....

What do you lot recon your shirt is for ?

Originally Posted by Humungus What do you lot recon your shirt is for ?

Originally Posted by dkapp Has anyone tried the sensor brush? I've read good things so far. Some reading Material Luminous Landscape Review Product Homepage Rob Galbraith Review. The price has kept me away so far. Dave

Yup. Worked fine for me.

Originally Posted by andy ... said the pot to the kettle ....

since you've been jomommatized, that would be "PKB".

Originally Posted by wxwax Yup. Worked fine for me.

you bought one? worked good, huh? there's just something that gives me shivers when i think about using liquid and swabs on a cmos sensor. of course, if it doesn't work, then I can blame you and the nikon deadbeat.

Originally Posted by Humungus What do you lot recon your shirt is for ?

keeping bbq sauce off my belly?