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-   -   About Canon a75 Dusts in the Shoots (https://forums.steves-digicams.com/general-discussion-11/about-canon-a75-dusts-shoots-30367/)

haldizen Jul 27, 2004 10:16 AM



I now think that the reason of that dusts are some particles in the air.Look at the fotos now i am sending.I took these in the clean room where there are only 10 particles in one metrecube. the flash also light but teher are no dust. What about your ideas?



http://www.ug.bcc.bilkent.edu.tr/~zsahin/2004_07_27.zip

RyanH Jul 27, 2004 3:18 PM

Yup, as stated in the other a75 thread, it is just dust and junk in the air.

I think it is a problem with all of the aXX line of cameras. I used to have the a20 and had the same problem.

Old Nick Jul 28, 2004 2:06 PM

But which cameras do not have this problem? I'm fed up with all the "orbs" I'm getting on the photos taken with my A70 and I want to buy a new digicam. But I don't want to waste $350 on a new camera just to discover that it's no better than the last one.



Is the Sony DSC-P93 "safe"? The flash is located pretty far away from the lens on that one compared to the A70 and that must be a good thing, right?

RyanH Jul 28, 2004 2:21 PM

Old Nick wrote:
Quote:

But which cameras do not have this problem? I'm fed up with all the "orbs" I'm getting on the photos taken with my A70 and I want to buy a new digicam. But I don't want to waste $350 on a new camera just to discover that it's no better than the last one.



Is the Sony DSC-P93 "safe"? The flash is located pretty far away from the lens on that one compared to the A70 and that must be a good thing, right?
I am sorry that I don't know about other cameras, but pretty much all of the Canon PowerShot AXX series cameras have this problem. I have a PowerShot G3, and don't have this problem and I know people who have Kodaks and HP's that don't have this problem. But I am not farmiliar with other brands then Canon. Sorry I couldn't be more help.

jawz Jul 28, 2004 8:52 PM

The mystery orb issue is not unique to the Cannon ax series. All cameras with built-in-flash are vulnerable to this problem. The problem stems from the relationship of the flash to the axis of the lens; the closer the flash axis is to the lens axis, the greater the chance that the lens will intercept (failrly bright) specular reflection from a dust mote in the vacinity. So the smaller the camera, the higher the probabilty that reflection from a chunk of dust will get recorded. My teensy Sony U20 has this problem in spades, my Oly C3020 has only rarely recorded a mystry orb. And my DiMAGE A1 has never (yet) seen the problem.

Old Nick Jul 29, 2004 7:40 AM

So the P93 should probably be ok then? The flash seems to be located pretty far away from the lens on that one.



http://www.steves-digicams.com/2004_.../p93_front.jpg


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