Big spot on photos - 20D

[wakeforce]

This is dust, easy to remove using the explanation you can find while googling "Cleaning CCD", using pec-pads and eclipse fluid.

 

About the guy that said a pec-pad left lint, this is untrue, and it is lint free *EXCEPT* if you cut it or tear it prior to using it, thus, you must've made one of the previous actions before trying it.

 

Don't wait to do it unless you want to have to make 30 swipes in a row in 2 years, that's what I had to do with my Drebel.

[pod]

I managed to revmove it with my Speck Grabber kit.

 

Thanks for the support and advice guys.

[andrewpgrant]

"<i>I think this happens more often to people who do lots of long exposures, I am sure if all you shoot is 1/60 and faster each time, the dust should be less of a problem than say someone doing a 6 hour star exposure.</i>"

 

At work we shoot, amongst other things, a lot of portraits - usually at 1/125 - and it is still a problem then. You tend to notice the blotches more on even, light-coloured backgrounds (sky, for example), regardless of shutter speed. You would be unlikely to notice the problem on a star exposure as the background would be dark. I don't know if depth of field might affect the problem, though. Could it?

[andrewpgrant]

Okay, why didn't my italics work?

[phule]

<< Okay, why didn't my italics work? >>

 

Because you didn't choose "HTML" before hitting submit?

 

<< Makes me not want to change lenses much.. >>

 

That's like saying you don't want to drive your car becaues the windshield might get dirty.

[andrewpgrant]

D'oh! Thanks - I'll remember to not be as careless next time ;-)

[pitman]

I had dust, those bulb blowers have a puny bulb. so i bought a cheap basting syringe and used selo tape to make the blow hole narrower. It did the trick hehe. Just call me cheap skate ;0)