[pure-silver] Re: dodging tools
- From: "EJ Neilsen" <ej@xxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Thu, 15 Nov 2007 21:05:27 -0600
Bogan, I believe what you are seeing happen with the diffusion material is a
scattering of the light rays; taking order and turning it into chaos. The
more diffused the more chaotic, until dimming begins to be more measureable
than simple scattering.
Eric Neilsen Photography
4101 Commerce Street
Suite 9
Dallas, TX 75226
http://e.neilsen.home.att.net
http://ericneilsenphotography.com
Skype ejprinter
> -----Original Message-----
> From: pure-silver-bounce@xxxxxxxxxxxxx [mailto:pure-silver-
> bounce@xxxxxxxxxxxxx] On Behalf Of Bogdan Karasek
> Sent: Thursday, November 15, 2007 7:58 PM
> To: pure-silver@xxxxxxxxxxxxx
> Subject: [pure-silver] Re: dodging tools
>
> But, of course, we put the sheet film holder in FRONT of the ground
> glass and not behind it. How stupid of me! I mean, really!
>
> OK, a quick question about diffusion. When you put a diffusion filter
> in front of a reflector, what exactly is the diffuser doing to the light?
> It's making it softer (????).... but how, what are the mechanics or
> physics of it?
>
> Is Isaac around?
>
> Cheers
> Bogdan
>
> Cheers,
> Bogdan
> BOB KISS wrote:
> > DEAR BOGDAN,
> > Well, the ground glass remains translucent and shows the image
> > projected on its surface but you cannot pass image making rays through
> it
> > ...they will be diffused.
> > CHEERS!
> > BOB
> >
> > -----Original Message-----
> > From: pure-silver-bounce@xxxxxxxxxxxxx
> > [mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Bogdan Karasek
> > Sent: Thursday, November 15, 2007 7:03 PM
> > To: pure-silver@xxxxxxxxxxxxx
> > Subject: [pure-silver] Re: dodging tools
> >
> > Hi Bob,
> >
> > With the shutter open, would an out of focus ground glass be considered
> > "translucent" and when in focus, it becomes "transparent" ???
> >
> > Cheers,
> > bogdan
> >
> > BOB KISS wrote:
> >
> >>DEAR ERIC,
> >> Translucent means, in laymen's terms, "lets some light through but
> >>doesn't necessarily allow a clear image to be viewed through or
> >
> > transmitted
> >
> >>through...".
> >> CHEERS!
> >> BOB
> >>
> >>-----Original Message-----
> >>From: pure-silver-bounce@xxxxxxxxxxxxx
> >>[mailto:pure-silver-bounce@xxxxxxxxxxxxx] On Behalf Of Eric Maquiling
> >>Sent: Thursday, November 15, 2007 5:59 PM
> >>To: pure-silver@xxxxxxxxxxxxx
> >>Subject: [pure-silver] Re: dodging tools
> >>
> >>On 11/15/07, Dave V <DValvo@xxxxxxxxxxxxxxxx> wrote:
> >>
> >>
> >>>Sorry my proofer has not been finding words out of place or double or
> >>>missing words yet. Opaque to me means light will not go through.
> >>
> >>
> >>Nope, my bad. I have Brooklyn school system education:
> >>
> >>Opaque \O*paque"\, a. [F., fr. L. opacus. Cf. Opacous.]
> >> [1913 Webster]
> >> 1. Impervious to the rays of light; not transparent; as, an
> >> opaque substance.
> >>
> >>I thought it meant it let a little light through.
> >
> >
>
> --
> ________________________________________________________________
> Bogdan Karasek
> Montréal, Québec bogdan (at) bogdanphoto.com
> Canada www.bogdanphoto.com
>
> "I photograph my reality"
> ________________________________________________________________
>
>
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