Archived from groups: rec.photo.digital (More info?)

Has anyone seen this before?

I'm trying to figure out why some of my photos of this old house
undergoing renovation have whitish circles on them and others don't.

Yeah, the house is reportedly haunted. My mind's wide open. But what
ELSE could cause the spots?

http://cda.morris.umn.edu/~webbrl/SawyerSep2005/

Thanks if you can help. RW
--

Archived from groups: rec.photo.digital (More info?)

On Mon, 12 Sep 2005 09:39:17 -0500, in rec.photo.digital
webbrl@morris.umn.edu (Rebecca Webb) wrote:

>Has anyone seen this before?
>
>I'm trying to figure out why some of my photos of this old house
>undergoing renovation have whitish circles on them and others don't.
>
>Yeah, the house is reportedly haunted. My mind's wide open. But what
>ELSE could cause the spots?
>
>http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>
>Thanks if you can help. RW

Dust on the lens or in the air illuminated by the flash.
________________________________________________________
Ed Ruf Lifetime AMA# 344007 (Usenet@EdwardG.Ruf.com)
See images taken with my CP-990/5700 & D70 at
http://EdwardGRuf.com

Archived from groups: rec.photo.digital (More info?)

>Yeah, the house is reportedly haunted. My mind's wide open. But what
>ELSE could cause the spots?

Flare.
And no, that ain't the name of the ghost.

Archived from groups: rec.photo.digital (More info?)

Lens flare? Each of the spots I saw were in photos with a reflected source
of bright light. You don't say what camera equipment was used.
http://www.cambridgeincolour.com/t [...] -flare.htm

"Rebecca Webb" <webbrl@morris.umn.edu> wrote in message
news:webbrl-1209050939170001@educ-dyn6.morris.umn.edu...
> Has anyone seen this before?
>
> I'm trying to figure out why some of my photos of this old house
> undergoing renovation have whitish circles on them and others don't.
>
> Yeah, the house is reportedly haunted. My mind's wide open. But what
> ELSE could cause the spots?
>
> http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>
> Thanks if you can help. RW
> --

Archived from groups: rec.photo.digital (More info?)

"Rebecca Webb" <webbrl@morris.umn.edu> wrote in message
news:webbrl-1209050939170001@educ-dyn6.morris.umn.edu...
> Has anyone seen this before?
>
> I'm trying to figure out why some of my photos of this old house
> undergoing renovation have whitish circles on them and others don't.
>
> Yeah, the house is reportedly haunted. My mind's wide open. But what
> ELSE could cause the spots?
>
> http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>
> Thanks if you can help. RW
> --

It's definitely a ghost. One of those ghosts that specializes in appearing
through white blotches that only appear on photographs taken by digital
cameras with dirty sensors and flareful lenses.

Eric Miller

Archived from groups: rec.photo.digital (More info?)

Rebecca Webb wrote:
> Has anyone seen this before?
>
> I'm trying to figure out why some of my photos of this old house
> undergoing renovation have whitish circles on them and others don't.
>
> Yeah, the house is reportedly haunted. My mind's wide open. But what
> ELSE could cause the spots?
>
> http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>
> Thanks if you can help. RW
> --
Dust in the air, and flash too close to the lens.


--
Ron Hunter rphunter@charter.net

Archived from groups: rec.photo.digital (More info?)

Eric Miller wrote:
> "Rebecca Webb" <webbrl@morris.umn.edu> wrote in message
> news:webbrl-1209050939170001@educ-dyn6.morris.umn.edu...
>> Has anyone seen this before?
>>
>> I'm trying to figure out why some of my photos of this old house
>> undergoing renovation have whitish circles on them and others don't.
>>
>> Yeah, the house is reportedly haunted. My mind's wide open. But what
>> ELSE could cause the spots?
>>
>> http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>>
>> Thanks if you can help. RW
>> --
>
> It's definitely a ghost. One of those ghosts that specializes in appearing
> through white blotches that only appear on photographs taken by digital
> cameras with dirty sensors and flareful lenses.
>
> Eric Miller
>
>
No, Eric, they will occur on a film camera, under the same
circumstances. I used to blame them on the photo processor not drying
the film properly, but the cause is simpler, and can be demonstrated
experimentally.


--
Ron Hunter rphunter@charter.net

Archived from groups: rec.photo.digital (More info?)

> Dust on the lens or in the air illuminated by the flash.

But shouldn't there have been more of them in the rooms that were dusty?
The rooms where they appear are the cleanest, and the rooms nearest the
torn up stairs don't have any...
--

Archived from groups: rec.photo.digital (More info?)

In article <webbrl-1209051031560001@educ-dyn6.morris.umn.edu>,
webbrl@morris.umn.edu (Rebecca Webb) wrote:

> > Dust on the lens or in the air illuminated by the flash.
>
> But shouldn't there have been more of them in the rooms that were dusty?
> The rooms where they appear are the cleanest, and the rooms nearest the
> torn up stairs don't have any...

Oh, wait. Maybe the flash didn't go off in those dustier (but better lit
via window sunlight?) rooms...
--

Archived from groups: rec.photo.digital (More info?)

Then again, there weren't any in the windowless basement photos, either...
--

Archived from groups: rec.photo.digital (More info?)

On Mon, 12 Sep 2005 09:39:17 -0500, webbrl@morris.umn.edu (Rebecca
Webb) wrote:

>Has anyone seen this before?
>
>I'm trying to figure out why some of my photos of this old house
>undergoing renovation have whitish circles on them and others don't.
>
>Yeah, the house is reportedly haunted. My mind's wide open. But what
>ELSE could cause the spots?
>
>http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>
>Thanks if you can help. RW

It's nothing more than dust in the air, being lit by the flash.

--
Bill Funk
Replace "g" with "a"
funktionality.blogspot.com

Archived from groups: rec.photo.digital (More info?)

Rebecca Webb wrote:

>
>> Dust on the lens or in the air illuminated by the flash.
>
> But shouldn't there have been more of them in the rooms that were dusty?
> The rooms where they appear are the cleanest, and the rooms nearest the
> torn up stairs don't have any...


Get a blanket or cloth that produces lots of dust when
you shake it..

Hold it just above the camera and shake it, then take a flash
shot right away.. You WILL see white dust blotches..

Archived from groups: rec.photo.digital (More info?)

On Mon, 12 Sep 2005 09:45:17 -0700, Bill Funk
<BigBill@pipping.com.com> wrote:

>On Mon, 12 Sep 2005 09:39:17 -0500, webbrl@morris.umn.edu (Rebecca
>Webb) wrote:
>
>>Has anyone seen this before?
>>
>>I'm trying to figure out why some of my photos of this old house
>>undergoing renovation have whitish circles on them and others don't.
>>
>>Yeah, the house is reportedly haunted. My mind's wide open. But what
>>ELSE could cause the spots?
>>
>>http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>>
>>Thanks if you can help. RW
>
>It's nothing more than dust in the air, being lit by the flash.

Unfortunately, there are a great many custard heads out there who
don't know that.

http://theshadowlands.net/ghost/orbs.htm

They have a whole folklore about "orbs"

Here's a nice debunking of such nonsense.

http://www.lioddities.com/ghost/debunked%20main.htm


****************************************************

"The booksellers are generous liberal-minded men."

Samuel Johnson
"Life of Johnson" (J. Boswell), Vol. I, 1756

Archived from groups: rec.photo.digital (More info?)

On Mon, 12 Sep 2005 10:48:42 -0500 in rec.photo.digital,
webbrl@morris.umn.edu (Rebecca Webb) wrote,
>Oh, wait. Maybe the flash didn't go off in those dustier (but better lit
>via window sunlight?) rooms...

I don't know about your camera, but mine records in the EXIF data
whether the flash fired or not. So, you could check that.

Archived from groups: rec.photo.digital (More info?)

Rebecca Webb wrote:
>>Dust on the lens or in the air illuminated by the flash.
>
> But shouldn't there have been more of them in the rooms that were dusty?
> The rooms where they appear are the cleanest, and the rooms nearest the
> torn up stairs don't have any...

They are undoubtably dust out of focus in the near field of the lens and
illuminated by the flash. Use a flash off the camera if you wish to
avoid this problem. It is a matter of pure luck whether or not a dust
particle is in the right zone to produce an offensive blotch or not.

It is very tricky in a snowstorm when working with on camera flash!

Regards,
Martin Brown

Archived from groups: rec.photo.digital (More info?)

On 9/12/05 10:59 AM, in article st5bi1dq6ae2mae6l3k67sveuqkj8l89mk@4ax.com,
"Ed Ruf" <egruf_usenet@cox.net> wrote:

> On Mon, 12 Sep 2005 09:39:17 -0500, in rec.photo.digital
> webbrl@morris.umn.edu (Rebecca Webb) wrote:
>
>> Has anyone seen this before?
>>
>> I'm trying to figure out why some of my photos of this old house
>> undergoing renovation have whitish circles on them and others don't.
>>
>> Yeah, the house is reportedly haunted. My mind's wide open. But what
>> ELSE could cause the spots?
>>
>> http://cda.morris.umn.edu/~webbrl/SawyerSep2005/
>>
>> Thanks if you can help. RW
>
> Dust on the lens or in the air illuminated by the flash.
>

How can you tell the difference between dust on the lens and dust on the
sensor?