> > From: Chan Yong Wei <[EMAIL PROTECTED]> > Date: 2005/01/07 Fri PM 01:34:20 GMT > To: [email protected] > Subject: Re: Re: ist D on bulb and CCDs > > Ouch.. and then your multiple-megapixel CCD sensor is ruined. > > Hence the need to change sensors once in awhile; my camera has that > feature. Just pop the back open... they sell replacements in packs of > four ;)
They can get scarred, too...... 8-) > > > On Fri, 7 Jan 2005 13:26:54 +0000, [EMAIL PROTECTED] > <[EMAIL PROTECTED]> wrote: > > > > > > > > From: Chan Yong Wei <[EMAIL PROTECTED]> > > > > > So the sun 'scars' the sensor? > > > > > > On Thu, 06 Jan 2005 23:49:30 +0000, mike wilson <[EMAIL PROTECTED]> wrote: > > > > Hi, > > > > > > > > Juan Buhler wrote: > > > > > On Thu, 06 Jan 2005 07:47:47 +0000, mike wilson <[EMAIL PROTECTED]> > > > > > wrote: > > > > > > > > > >>Not ist D but this site shows what can happen with long exposures to > > > > >>the > > > > >> sensor if, for example, the sun is in the picture. Best to look at > > > > >> it > > > > >>on a foggy day - which seem to be most of the time at the moment. > > > > >> > > > > >>http://voksenlia.net/ > > > > > > > > > > > > > > > What happens to the sensor? It doesn't look like it gets any long term > > > > > damage, or am I missing something? > > > > > > > > If you look in the sky portion of the picture, you can see pink streaks > > > > where the sun has tracked across the frame. When conditions are right, > > > > it is very obvious. The streaks run from top left to bottom right (very > > > > approximately) in parallel curves, demonstrating the sun's changing > > > > track through the sky as the year progresses. They are permanent > > > > artefacts on every future picture this sensor will take. > > > > > > > > Like this: > > > > http://voksenlia.net/nytt/byger-20040726-liten.jpg > > > > http://voksenlia.net/nytt/meis-20031014-liten.jpg > > > > http://voksenlia.net/nytt/regn-20040920-liten.jpg > > > > That's as good a way of putting it as any. You would get the same effect > > from any bright light source. Just the time needed for the effect to occur > > would change. > > > > mike > > > > ----------------------------------------- > > Email provided by http://www.ntlhome.com/ > > > > > > ----------------------------------------- Email provided by http://www.ntlhome.com/
