Re: What, no ideas?

["Walton" <ronk@xxxxxxxx>]

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> From: Don Roberts <droberts@xxxxxxxxxxxxx>
> To: ronk@xxxxxxxx
> Subject: What, no ideas?
> Date: Saturday, January 25, 1997 11:22 AM
> 
> Last week I posted the following and got no responses.  I can't believe
> that no one even has any speculation so I'll try again.  Any ideas
> please.  I don't want to waste any more IR film if I can help it.
> 
      Did you have a point light source included in the scene such as the
sun or a street light?  If you were this may be the cause.  The viewing
aperture may not let you see the effect of the actual aperture used for the
exposure.  Without more information the problem is hard to analyze.

Ron Walton

> > I am very new to the IR area so I hope this isn't an old question.  I
> > just processed a roll of HIE and a roll of Konica IR750 and discovered
> > that most of the images are unusable because of what appears to be lens
> > flare.  The puzzling thing to me is that both were shot with reflex
> > cameras and I was not seeing flare through the viewfinders.  The HIE
was
> > shot in a Nikon 8008s with a 28-70 zoom and between-the-rails #25
> > filter.  The Konica was shot in a Rollei TLR with a #25 filter in a
> > bayonet ring over the taking lens.  I have enough problems trying to
> > figure out the way to get sharper images without having flare too! 
> > Anybody got any ideas about why this occurred?
> > 
> > To be more specific, I have a line of images of the iris opening coming
> > across the neg.  I have used these cameras before in similar situations
> > but without the filters and haven't run across this problem.  Does
> > internal reflection become more of a problem with this setup?
> > -- 
> 
> -- 
> Don Roberts 
> Bittersweet Productions
> Iowa City, IA

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