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sensor or lens? 1111 Responses
Last post: 2 months, 1 week ago | Thread started: Sep 25, 08, 11:46 p.m.
- senseg
http://www.flickr.com/photos/sen…
hello
is this a sensor dirty ? i tried to clean my lens, but still have them.
BUT, i dont see them on my wide angle 10-22 lens- Sep 25, 08, 11:46 p.m. – Permalink
- ArmandoEstrada
sensor. you wont see the dirt at some aperture openings...
what i do is get a nice zoom (like 24-70 or similar) and shoot a solid blue sky in rapid sequence and zoom in and out and change aperture manually. check files.
- Dog-earSep 25, 08, 11:53 p.m. – Permalink
- slappy
Put the lens out of focus and set aperture to f22 or higher. Take a photos of something bright like a white screen on your computer (blank file in photoshop will do fine) and what you see in your photos is the sensor dust.
Get a rocket blower onto that sensor, if that fails then go for the copperhill technique wet clean.
- Dog-earSep 25, 08, 11:59 p.m. – Permalink
- rafalski
"the problem is - i dont have a canons ervice here... how i can clean it by myself? what should i buy? any links? "
I would refrain from using any "pads" that touch the sensor, senseg, at least until you know you have dust/speckles that you can't remove with a blower. In most cases, the blower does the job.
Despite the initial confusion, using rocket blower is no rocket science.
- Dog-earSep 26, 08, 1:42 a.m. – Permalink
- johnnnnyh
I bought a Sensor cleaning kit whcih included pads, brushes etc. Go with blower first, then gentle brush, then pads if really needed. I would say your sensor is not too bad. Mine is covered in shit at the moment. It's a long, job and I have to admit first few times I cleaned the sensor I seemed to move the dirt around and probably added some more to it.
Go gently and do the minimum - if a blow job is all it needs then don't go any further, (if you get my meaning!!).- Dog-earSep 26, 08, 1:56 a.m. – Permalink
- Laurent
Sensor it is. Go to yr computer screen. Open a Blank page in Photoshop or else....take a picture of the white screen.
Look at it on the computer screen (dont forget to flip it horizontally) and you get a mirrored pics of yr sensor and dirt).
Use Cleaning Swabs and E2 liquid. Blower wont get the dot of dirt off the sensor.
- Dog-earSep 26, 08, 4:32 a.m. – Permalink
- Laurent
How do you know you have a dirty sensor?
If you shoot Av (aperture priority or preferred) and have fast lenses and shoot with them wide open, you won’t notice a dirty sensor much if at all. However, as you stop down (reduce the size of the aperture) you will start to see the dust, if you have it.Put any lens on your camera, set the camera to Av mode (aperture preferred) and stop down to f/16 or smaller.
Take a picture of a white wall or a white computer screen.
Look at the picture on your computer. If you see spots, you’ve got dust. Note, it’s useful to try to remember where the spots are so that as you clean you can see if you’re making any progress when you check again.
- Dog-earSep 26, 08, 4:36 a.m. – Permalink
