limwhow
Senior Member
Thank you!
Sensor has 2 dots..
- Thread starter ardnirun
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Thank you!
CS TAN
Senior Member
From TS' pics, it looks to me they are the residue from the dust. I have similar experience with dust on sensor. The dark spots were quite obviously, but after I use a blower to blow at the sensor, those marks became quite faint and it resemble what you have on the pics. Since it was not really noticeable, I did not send it to CSC for cleaning.
But in your case, since you have already sent it to CSC for cleaning, you might want to ask them to do a complete job by removing those stains from the sensor. Perhaps CSC just use blower to clean your sensor the last time?
But in your case, since you have already sent it to CSC for cleaning, you might want to ask them to do a complete job by removing those stains from the sensor. Perhaps CSC just use blower to clean your sensor the last time?
flyer
New Member
Mon-Fri 9:30am to 7pm
i know...but tomoroe considered public holiday rite?or they are onli closed on major public holidays and not the off in lieus?
Hi Snoweagle,
Need your advise. My new 500D (2 mths old, never clean before) showed 4 faint black marks whenever i set the aperture at f22 or above, regardless of which lens i used. It never appear at bigger aperture setting.
Is this the case of what you mentioned "dusts are more evident at smaller apertures"? Was thinking whether there is some fault in the sensor or camera.
Thanks.
flyer
New Member
Good point.. I don't know. Call them first before you head over 1800-799-8686.
No. It's simply just dusts on yr sensor. If yr camera has a sensor cleaning function, use it. If still fails and u find it unacceptable then send it to CSC for cleaning.
Mine is a 500D which has a self cleaning function, but it doesn't seems to work as the spot remains on the same place. Its not that serious though as it only appears with aperture setting f22 ~ 36. I just avoided that range for now. Thanks.
Need another advise from you: I recently bought a EF50mm f1.4 lens. When i look into the lens (w/o the camera), i saw many 'dusts' inside it which i can't reach. One of them looks like a 'bubble' and as it is quite reflective. Is this normal or is the lens defective? Thanks in advance.
Honestly those built-in sensor dusts removal systems are pretty useless and not all can be removed.
U must know something. Dusts are everywhere even in lenses and these are normal. Everyone has some dusts inside their lenses and camera sensors. As long as they don't affect the pictures, it's fine.
If internally accumulates too much also no difference.
rain5533
Senior Member
i think can be try to air blow out the sensor.. after mirror trun.
before you air blow, you should get ready LED touch light to see wether inside is too dirty or not.
cause i have tried on my DSLR too.
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I always use my blower to blow out any possible dusts that can be removed just by that. But now i've one small one that's very stubborn and visible from f/11 onwards. But not much issue, next time send to CSC for cleaning.
rain5533
Senior Member
for may ways to tired still no diff.
then just send to CSC for service..
cause your 5D is older model , didn't built-in dust sensor cleaning.
after service then used it properly don't exploded too much as out door when you changing your lens.
just keep your body infront facing down side, before mounting the lens.
good luck. :bsmilie:
geekbrains
Senior Member
As many seniors here said dusts are inevitable, get used to it. By looking at the pics that you've posted, first it doesn't affect your picture quality. Secondly, it looks more like a smear or a welded dust as Thom Hogan says. I had far worse experience in NSC (Hope you can find my thread) and it took the guy 7 - 8 times to bring it back to me in an acceptable level. Mostly NSC and CSC do not have a clean room and I have had similar experiences with them (I have both brands). Learn to do it yourself as it's not a rocket science. I personally advise the dry blower method with a Giottos rocket blower and followed by a wet method using sensor swab / E2 combination.
Thom Hogan has clearly said in his article, the Low Pass filter cannot be easily scratched, provided you use those safe methods mentioned above and do this in a relatively clean environment.
http://www.bythom.com/cleaning.htm
Thom Hogan has clearly said in his article, the Low Pass filter cannot be easily scratched, provided you use those safe methods mentioned above and do this in a relatively clean environment.
http://www.bythom.com/cleaning.htm
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