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odd circular blotches on some pic: Kodak CX 6445

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  #1  
Old 02-03-2005, 04:04 AM
Default odd circular blotches on some pic: Kodak CX 6445



On a otherwise find camera for quality build and output I have noticed an
occasional but pesky artifact where some pics have circular white blotches
on the photo.

They appear randomly and inconsistent with regard to any one area of photo
or shooting occasion.

Any help on what this is and how to minimize or eliminate would be
appreciated,

Thanx




XP User
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  #2  
Old 02-03-2005, 09:11 AM
David J Taylor
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Default Re: odd circular blotches on some pic: Kodak CX 6445

XP User wrote:
> On a otherwise find camera for quality build and output I have
> noticed an occasional but pesky artifact where some pics have
> circular white blotches on the photo.
>
> They appear randomly and inconsistent with regard to any one area of
> photo or shooting occasion.
>
> Any help on what this is and how to minimize or eliminate would be
> appreciated,
>
> Thanx


When using flash? In a dusty environment?


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  #3  
Old 02-03-2005, 10:15 AM
Robert Klemme
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Default Re: odd circular blotches on some pic: Kodak CX 6445


"XP User" <(E-Mail Removed)> schrieb im Newsbeitrag
news:PKadnQ2NwbJ2P5zfRVn-(E-Mail Removed)...
> On a otherwise find camera for quality build and output I have noticed

an
> occasional but pesky artifact where some pics have circular white

blotches
> on the photo.
>
> They appear randomly and inconsistent with regard to any one area of

photo
> or shooting occasion.
>
> Any help on what this is and how to minimize or eliminate would be
> appreciated,


I see them with my Canon G5 occasionally, too. I guess it has something
to do with lighting, especially the angle in which light from the sun or
other sources comes into the lens.

Kind regards

robert

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  #4  
Old 02-03-2005, 12:28 PM
Nicholas Adam
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Default Re: odd circular blotches on some pic: Kodak CX 6445

"Robert Klemme" <(E-Mail Removed)> schrieb:


>
>I see them with my Canon G5 occasionally, too. I guess it has something
>to do with lighting, especially the angle in which light from the sun or
>other sources comes into the lens.
>
>Kind regards
>
> robert



Same here with a Lumix FZ20, Casio QV, Olympus 750 SZ
.....you were guessing correctly. It is a matter of an extra
artificial light falling in when one uses the flash.

kindly
nick

http://www.intergrafis.de/pass/index.htm
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  #5  
Old 02-05-2005, 03:59 AM
Ken
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Default Re: odd circular blotches on some pic: Kodak CX 6445


"Nicholas Adam" <(E-Mail Removed)> wrote in message news:(E-Mail Removed)...
> "Robert Klemme" <(E-Mail Removed)> schrieb:
>
>
> >
> >I see them with my Canon G5 occasionally, too. I guess it has something
> >to do with lighting, especially the angle in which light from the sun or
> >other sources comes into the lens.
> >
> >Kind regards
> >
> > robert

>
>
> Same here with a Lumix FZ20, Casio QV, Olympus 750 SZ
> .....you were guessing correctly. It is a matter of an extra
> artificial light falling in when one uses the flash.


You mean something like this - http://ken.smugmug.com/photos/15303428-M.jpg ?
Classic lens flare from my FZ20 and a WA lens attachement.


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  #6  
Old 02-05-2005, 10:49 AM
Nicholas Adam
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Default Re: odd circular blotches on some pic: Kodak CX 6445

"Ken" <(E-Mail Removed)> schrieb:

>
>"Nicholas Adam" <(E-Mail Removed)> wrote in message news:(E-Mail Removed)...
>> "Robert Klemme" <(E-Mail Removed)> schrieb:
>>
>>
>> >
>> >I see them with my Canon G5 occasionally, too. I guess it has something
>> >to do with lighting, especially the angle in which light from the sun or
>> >other sources comes into the lens.
>> >
>> >Kind regards
>> >
>> > robert

>>
>>
>> Same here with a Lumix FZ20, Casio QV, Olympus 750 SZ
>> .....you were guessing correctly. It is a matter of an extra
>> artificial light falling in when one uses the flash.

>
>You mean something like this - http://ken.smugmug.com/photos/15303428-M.jpg ?
>Classic lens flare from my FZ20 and a WA lens attachement.
>

Nope.
What I was talking about occures indoors. If one uses a flash while
there are one or more other artificial light.

Nick
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  #7  
Old 02-05-2005, 11:11 AM
David J Taylor
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Default Re: odd circular blotches on some pic: Kodak CX 6445

Nicholas Adam wrote:
[]
> What I was talking about occures indoors. If one uses a flash while
> there are one or more other artificial light.
>
> Nick


I already told you what those were - dust particles in the atmosphere
which are close to the lens and flash. Being close to the flash, they are
brightly illuminated. Being close to the lens, they are out of focus (and
hence round), but not as much out of focus as they would be with a
larger-format SLR camera. Hence these particles are more visible with
point-and-shoot cameras.

Cheers,
David


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  #8  
Old 02-06-2005, 06:48 PM
Ed Ruf
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Default Re: odd circular blotches on some pic: Kodak CX 6445

On Sat, 5 Feb 2005 11:11:35 -0000, in rec.photo.digital.point+shoot "David
J Taylor" <david-(E-Mail Removed)> wrote:

>brightly illuminated. Being close to the lens, they are out of focus (and
>hence round), but not as much out of focus as they would be with a
>larger-format SLR camera. Hence these particles are more visible with
>point-and-shoot cameras.


Just an educational point for the OP. This is because P&S cameras have a
much greater depth of field (DOF) than dSLRs due to their very short actual
focal lengths.
----------
Ed Ruf Lifetime AMA# 344007 ((E-Mail Removed))
See images taken with my CP-990/5700 & D70 at
http://edwardgruf.com/Digital_Photog...ral/index.html
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