Robert,
That crossed my mind, but I find myself trying to focus the foreground or the
sides of an image while making slight movements of the front or back of the
camera. Still it is an interesting point since shooting a landscape pic does not
need any great movements. It may be handy to have different glass to match the
type of image. What I could do is mask off the glass and sandblast the outer
edges at full pressure on the sandblaster and then do the center at a reduce air
pressure. This may give the effect that you are thinking about.
I have the sandblaster at my disposal so trying different things is fairly
cheap, just the price of a $1.00 picture frame at the local close-out store. We
will give that a try and see what the results are. I will take another frame to
work and let you know how it looks.
Phil McCourt
Robert Stoddard wrote:
> This sounds as though there may be a tradeoff between fineness of the
> groundglass and brightness of the image. Maybe it would make sense to put
> about a 10 to 15 mm spot of very fine grind or etching at the center to use
> for focusing, and surround it with a coaser grind for a brighter image...RKS
>
> >From: "Philip J. McCourt" <[EMAIL PROTECTED]>
> >Reply-To: [EMAIL PROTECTED]
> >To: [EMAIL PROTECTED]
> >Subject: Re: [Cameramakers] Making ground glass
> >Date: Mon, 02 Jul 2001 17:16:57 -0400
> >
> >
> >
> >PhilSan wrote:
> >
> > > I will take a pc of glass into work Monday and try sandblasting it with
> >fine
> > > glass shot and see what it looks like. If all goes well I'll report back
> >to
> > > the list monday evening as to what it looks like. If it turns out good
> >I will
> > > post a picture of it on my web site as soon as possible.
> > >
> > > Phil McCourt
> > >
> > > www.philsan.com
> > >
> > > _______________________________________________
> > > Cameramakers mailing list
> > > [EMAIL PROTECTED]
> > > http://rmp.opusis.com/mailman/listinfo/cameramakers
> >
> >Hello All,
> >I sandblasted a couple pc's of glass at work today and installed it in the
> >8x10
> >right away. The image is a lot brighter as compared to the acid etched
> >glass that
> >I had in it. The only thing that is throwing me off is the sandblasted
> >glass has a
> >more textured surface that shows when you look at the glass with a loupe.
> >Shouldn't be a problem because the image is so much brighter.
> >
> >I had trouble seeing the image while stopped down to f45 on the acid glass.
> >I am
> >able to see the image much better on the sandblasted glass while stopped
> >down. I
> >can even see the image without the focusing cloth while at f45. My wife
> >spotted
> >the difference as soon as she looked at the glass.
> >
> >Needless to say I am going to stay with the sandblasted glass, can't wait
> >to do a
> >little practising with the new glass.
> >
> >Phil McCourt
> >
> >www.philsan.com
> >
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>
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