Re: Sprocket shadows & little white spots

["Elton N. Kaufmann - Cycloid Fathom Group" <cycloid@xxxxxxxxxxxxxxxxxx>]

Angela ,
There were several exchanges on the list about the white spots (or as we
called them "pin holes") a couple months ago.  There were a bunch of causes
suggested but no one thought they came from anything in the scene itself.
I don't see how water droplets small enough the be suspended in air would
cause this.
 My HIE pin holes still occur occasionally but not nearly as bad as before.
 I never used an acid stop either. But I switched from D76 mixed with tap
water to Xtol mixed with distilled water and agitated more gently than
previously.  (I guess not gently enough to prevent the sprocket hole effect
though.)  I am not sure this pin hole problem is purely under our control.
I am beginning to suspect that some batches of HIE may be more prone to
this processing problem than others.  Why else would they pop up for folks
who have not seen them before and have not changed chemistries?

					Good luck,
						EltonK

 >Date: Wed, 08 Apr 1998 14:48:06 GMT
>From: aeophoto@xxxxxxxxxxx
>Subject: Re: Sprocket shadows & little white spots
>
>Hi-
>
>I have had this sprocket problem occasionally and will try some of the
>suggestions.
>
>My latest roll of film had a little, white spot problem that printed
>dark spots on the print.  It cannot be little acid holes from too
>strong stop bath because I no longer use stop bath for development -
>just a water stop.  I have had the problem before when it was a foggy
>day or rainy/snowy day and it was explained to me that the infrared
>was picking up the little bits of water in the atmosphere.
>
>But, my favorite image in my most recent rolls has the spots in the
>sky and on the grass.  It was not raining nor misty.  It has been
>raining off and on here, but did not rain nor mist that day.  The
>ground was wet; the grass was wet.  
>
>Could this also be an agitation problem?  Or something else?  If not,
>has anyone else had the problem and figured out a way to diminish it?
>Can you stand at a different angle to the light?
>
>When I have had the problem with rainy/misty days, there are only a
>few spots here and there and they have never ruined an image on their
>own.  This recent negative, which I LOVE otherwise, is unprintable.
>
>Thanks.  (I wanted to see if this was mentioned in Laurie White's
>infrared book, but I've had the book on order for about 6 months and
>have never received it.  Something to do with reprinting?)
>
>Thanks again if anyone has any ideas or suggestions.
>
>Angela 
>aeophoto@xxxxxxxxxxx
>http://home.pacbell.net/aeophoto/

Exhibiting fine-art and editorial photography
Cycloid Fathom Gallery
Elton N. Kaufmann, Chairman
P. O. Box 8129
Downers Grove, Illinois 60517-8129
USA
cycloid@xxxxxxxxxxxxxxxxxx
http://www.cycloid-fathom.com/gallery/
ftp.cycloid-fathom.com/group/uploads/

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