Nicola Smanio
January 27th, 2003, 12:37 PM
I´ve got a problem, and I´m quite sure there is somebody else with the same problem out there.
When I have sun in the frame, or a very bright light (not all that bright, actually) i get a quite thick (3 to 5 pixels, I´d say) white vertical line going trhough the whole frame. And what´s worse (and looks even uglier) is that when the sun is on the upper margin of the frame, the lines become three! one for each primary color, and they are quite spaced from each other (let´s say 10 pixels). This is probably due to a diffraction effect on the margins of the lens, but why is it happening only on the upper margin of the image? or maybe it´s a problem with the prism? And if I look a bit better, I can see that the normal "glow" of the sun is divided into small horizontal lines.
Anyway, before giving it back I thought of checking some other cameras (unluckily I don´t know anybody with another XL1s), so I tried a small Sony (a TRV-17) and the line was there, yes, but it was so tiny and light that you couldn´t even notice it. Then I try with a brand new XM2 and what do I see? exactly the same! maybe a bit lighter, but the same!!!
I know that I shouldn´t point the camera directly at the sun, but I also know that if I do it on F32 with ND filter and for short times it won´t be a problem. My XL1s is new and I noticed this since the first time I used it (and if I had fu**ed up the CCDs I would have burned some pixels, or all of them, and I wouldn´t be able to see much).
I mean: a shallow, tiny line comes with every digital camera, but this seems like a manufacturing problem... maybe with all of the new Canon 3 CCDs cameras?
I would like to know if anybody else has ever noticed anything like that before, because I tried all kind of everything: polarizer, ND, UV... and I´m afraid that if I give my camera back and get a new one I´ll have the same problem.
thanks to all.
When I have sun in the frame, or a very bright light (not all that bright, actually) i get a quite thick (3 to 5 pixels, I´d say) white vertical line going trhough the whole frame. And what´s worse (and looks even uglier) is that when the sun is on the upper margin of the frame, the lines become three! one for each primary color, and they are quite spaced from each other (let´s say 10 pixels). This is probably due to a diffraction effect on the margins of the lens, but why is it happening only on the upper margin of the image? or maybe it´s a problem with the prism? And if I look a bit better, I can see that the normal "glow" of the sun is divided into small horizontal lines.
Anyway, before giving it back I thought of checking some other cameras (unluckily I don´t know anybody with another XL1s), so I tried a small Sony (a TRV-17) and the line was there, yes, but it was so tiny and light that you couldn´t even notice it. Then I try with a brand new XM2 and what do I see? exactly the same! maybe a bit lighter, but the same!!!
I know that I shouldn´t point the camera directly at the sun, but I also know that if I do it on F32 with ND filter and for short times it won´t be a problem. My XL1s is new and I noticed this since the first time I used it (and if I had fu**ed up the CCDs I would have burned some pixels, or all of them, and I wouldn´t be able to see much).
I mean: a shallow, tiny line comes with every digital camera, but this seems like a manufacturing problem... maybe with all of the new Canon 3 CCDs cameras?
I would like to know if anybody else has ever noticed anything like that before, because I tried all kind of everything: polarizer, ND, UV... and I´m afraid that if I give my camera back and get a new one I´ll have the same problem.
thanks to all.