40D dust magnet?

hollis_f wrote in post #10082133
It doesn't hurt if you insist on wearing a purple tutu either, but it's just as pointless.

Oh ... thanks for spilling my secret all over the internet!

my best suggestion would be to stop changing lenses in mounds of dust. We understand it is the perfect cushion for your camera to avoid scratching your lcd but all in all it is only adding more grief to your shooting habits...

don'tcallmeash,

Here's something for those who change lenses frequently in hostile locations:

http://www.kinetronics​.com/store/cab.html

I agree with others in this thread that it's not a good idea to clean your sensor after every lens change. But if you're in those dusty conditions a lot, it's probably OK to use a Rocket blower or a sensor brush after each switchup. These two tools are about as benign as it gets and can be used as often as you like.

Nicholas
http://copperhill.zenf​olio.com/blueridge/h0/​slideshow
www.copperhillimages.c​om

Nicholas R. wrote in post #10087806
don'tcallmeash,

Here's something for those who change lenses frequently in hostile locations:

http://www.kinetronics​.com/store/cab.html

I agree with others in this thread that it's not a good idea to clean your sensor after every lens change. But if you're in those dusty conditions a lot, it's probably OK to use a Rocket blower or a sensor brush after each switchup. These two tools are about as benign as it gets and can be used as often as you like.

Nicholas
http://copperhill.zenf​olio.com/blueridge/h0/​slideshow
www.copperhillimages.c​om

haha that looks like it's suuuuuch overkill for anyone. not trying to start a fight here but half of the specialized "equipment " some people buy is merely an overpriced and more impressive LOOKING version of something common... in this case, a large ziplock bag would suffice pretty well if its not a huge lens and if it is too large you can use something else very advanced called a plastic garbage bag. They come in boxes or rolls with plenty in case you lose it!!!! You might even be able to find some in different colors or "limited edition" clear!!!!!!!!!!!

well, the weird thing is that in using a 1000d and d200 (which doesn't even have a automatic cleaning feature) for much longer, with as many lens changes, the only one that gets the dust after lens changes is the 40d. that's what really baffles me. as if something inside the camera or a lens is fragmenting and showering little bits of dust (plastic maybe?).

dontcallmeash wrote in post #10088110
well, the weird thing is that in using a 1000d and d200 (which doesn't even have a automatic cleaning feature) for much longer, with as many lens changes, the only one that gets the dust after lens changes is the 40d. that's what really baffles me. as if something inside the camera or a lens is fragmenting and showering little bits of dust (plastic maybe?).

Maybe in cleaning your sensor, you have somehow put a charge on it that attracts the dust particles. What method do you use ?

lannes wrote in post #10088205
Maybe in cleaning your sensor, you have somehow put a charge on it that attracts the dust particles. What method do you use ?

i use the copper hill brush.

dontcallmeash wrote in post #10088212
i use the copper hill brush.

If it's not picking up the dust as well as it should be, then you probably have some lubricant on it. You'll need to decontaminate it. First follow the cleaning directions in the brochure, then do this:

1) bring a little water to a simmering boil
2) immerse the bristles half way down into the water for about 40 seconds
3) squeeze out excess water and let air-dry for at least 8 hours
4) place 2 drops of Eclipse on the tip, message it in a little, then set to dry for about 1/2 hour
* The brush is now totally decontaminated and ready to go.

All sensor brushes will be very ineffective when contaminated with lubricant, so if you do the steps above, it should work as promised.

As for the camera bag, yes, I agree it's overkill, but there ARE people who use those things. If you're shooting BMX races or any other type of action with a ton of dust in the air, then preventing that stuff from entering the chamber is critical. And, yes, a big, clean plastic bag will do the same job as the one that costs $59.

Nicholas
www.copperhillimages.c​om

Nicholas R. wrote in post #10088287
If it's not picking up the dust as well as it should be, then you probably have some lubricant on it. You'll need to decontaminate it. First follow the cleaning directions in the brochure, then do this:

1) bring a little water to a simmering boil
2) immerse the bristles half way down into the water for about 40 seconds
3) squeeze out excess water and let air-dry for at least 8 hours
4) place 2 drops of Eclipse on the tip, message it in a little, then set to dry for about 1/2 hour
* The brush is now totally decontaminated and ready to go.

All sensor brushes will be very ineffective when contaminated with lubricant, so if you do the steps above, it should work as promised.

As for the camera bag, yes, I agree it's overkill, but there ARE people who use those things. If you're shooting BMX races or any other type of action with a ton of dust in the air, then preventing that stuff from entering the chamber is critical. And, yes, a big, clean plastic bag will do the same job as the one that costs $59.

Nicholas
www.copperhillimages.c​om

cool, i'll try that.

i'm really frustrated with it, since i've changed lenses on the DUNES with a wind (just turned my back) and didn't get a grain of sand in my d200.

i change lenses on a pristine desk with the 40d and i have dust.

dontcallmeash wrote in post #10088380
cool, i'll try that.

i'm really frustrated with it, since i've changed lenses on the DUNES with a wind (just turned my back) and didn't get a grain of sand in my d200.

i change lenses on a pristine desk with the 40d and i have dust.

We are assuming your charging the brush before brushing the sensor.

lannes wrote in post #10088514
We are assuming your charging the brush before brushing the sensor.

yes, either with the velum paper or the rocket blower method.

You must be doing something wrong. I've had my 40D for two years now, and I haven't cleaned the sensor once in all that time. And yes I do change lenses on it.

Sorarse wrote in post #10088900
You must be doing something wrong. I've had my 40D for two years now, and I haven't cleaned the sensor once in all that time. And yes I do change lenses on it.

I have had mine until 1 month ago shot nearly 7000 shots on the counter and never cleaned the sensor in that time ,incedently I have also never chimped at 100% , I print for photographic comps and have never had your problem .
The only reason I sold the 40d Is that I have upgraded to the 1dmk3.
Perhaps you have some foam floating around sounds iffy to me
bazz8

Sorarse wrote in post #10088900
You must be doing something wrong. I've had my 40D for two years now, and I haven't cleaned the sensor once in all that time. And yes I do change lenses on it.

turns out it wasn't all dust. the shutter was spraying blobs of oil on the photosensor. i sent it to canon to have it looked at.

that camera has been nothing but trouble.