My understanding is that you don't actually clean the sensor itself, but the clear low pass filter over the sensor.
This brings up a question: What is the sensor filter made of? Is it glass?
If it glass, then plastic wouldn't harm it.
I have also heard of using Saran Wrap to clean the sensor filter. Anyone ever tried this method?
I have EOS 400D with its integrated cleaning system (ultrasonic), but I am new with it, so what are your expiriences with it? Does it really works?
I guess you all know, but anyway, its good practice to keep your body facing down when replacing
lenses. I know electric static will go against gravity but at least the 'heavy' things fall out and not on top of your sensor this way. Also make sure your 'new' lens is clean on the side it faces the sensor. Also when outside, try to do it inside a bag.
Just google for copper hill
1 of many results [url]http://www.copperhillimages.com/index.php?pr=Tutorials[/url]
I'll try that. Any alternative to the auto curves? I don't think I have that in PSP7.
Regards,
Adelaide
Shot the sky with a very high f number
Shot the sky with a very high f number
oh yeah... especially a dark, deep blue sky (if you can find days like that anymore) ..... My wife said I sounded like a madman last night as I 'shopped' them out... the spotting was horrible and very very time consuming... and when you deal with sky, it is usually gradient, changing ever so slightly from top to bottom side to side.. then, sometimes... you just can't 'paint' the spot out, you just create a different looking spot! LOL ... repeat after me, "sensor dust sux, senso dust sux..." -tom
I'll try that. Any alternative to the auto curves? I don't think I have that in PSP7.
Regards,
Adelaide
I'll try that. Any alternative to the auto curves? I don't think I have that in PSP7.
Regards,
Adelaide
Try the equalize tool... create a layer and equalize it, then, paint over the spots on the first (background) layer... then delete the layer and you have a clean image.
As for dust i use a blower, not a rocket blower but is similar, and i use it occasionally before a big session or every few weeks. I blow it to the sensor with the camera facing down so dust will fall as much as it can and do it several times, inspecting the sensor in between blows. This at least removes the big stuff, as for the rest, i don't have really that much of a problem with dust.
then open the image up in curves and click 'auto' (which makes the contrast very high)... and look at all the black dots (this is dust)
I haven't noticed anything in my camera yet, and I wonder if I'm blind to it. It's a Canon 400D, but I don't expect its auto cleaning thing to be so perfect. What would be the best test to do, like shooting a plain color surface or whatever.
Regards,
Adelaide
I haven't taken the lens off my 5d since buying it but I still have dust accumulating on the sensor.
Not so long a go I saw a photographer with some weird little changing bag. It looked like something for handling radioactive waste. He changed his lenses by putting camera and new lens into the bag, zipped it all up, slipped his hands into glove-shaped pockets at the sides of the bag, changed the lens and then unzipped it and took the whole lot out again.
I found this article on sensor cleaning that you all might find worthwhile:
[url]http://www.prime-junta.net/pont/How_to/a_Brush_Your_Sensor/a_Brush_Your_Sensor.pdf[/url]