From: Claudia Lorenz (clorenz@telusplanet.net)
Date: 12/20/02-06:30:16 PM Z
Thanks everyone, that makes perfect sense!
Claudia
----- Original Message -----
From: "Joe Smigiel" <jsmigiel@kvcc.edu>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Friday, December 20, 2002 11:46 AM
Subject: Re: sandy's viewfinder
> Hi Claudia,
>
> To make a viewfinder you would need to cut a hole that matched the film
format in a card. (I like black matboard for this purpose although a 35mm
slide mount is a readymade version.) For 35mm cameras, the film format is
24mmx36mm or approximately 1"x1 1/2". If you hold the card at 50mm (~2")
from your eye, it will match the view given by your normal 50mm lens. At 4"
it would match a 100mm focal length, and at 1" (25.4mm) it would be similar
to a 24mm or 28mm view.
>
> Now this is hard to see through at a close distance, so you could double
the lengths of the hole edges to 2"x3" and hold the card 4" from your eye to
approximate the framing a normal 50mm lens. At 8" the 2x3 card would show
the framing of a 100mm lens, and so on.
>
> Joe
>
> <<< clorenz@telusplanet.net 12/20 11:34a >>>
> Excuse the newbie question, but would someone be able to explain how this
> could be done with 35mm? Thanks,
>
> Claudia
>
> ----- Original Message -----
> From: "Shannon Stoney" <shannonstoney@earthlink.net>
> To: <alt-photo-process-l@sask.usask.ca>
> Sent: Thursday, December 19, 2002 10:27 AM
> Subject: Re: sandy's viewfinder
>
>
> >
> >
> > ----------
> > >From: John Edwards <edw4@mindspring.com>
> > >To: alt-photo-process-l@sask.usask.ca
> > >Subject: Re: sandy's viewfinder
> > >Date: Wed, Dec 18, 2002, 11:02 PM
> > >
> >
> > > My searches don't show this - - and I'm interested - where is it??
> > > - John
> >
> > Here it is:
> >
> > Cut a frame in the mask the exact size of your 8X10 negative. Then
> > attach two pieces of cord to the frame, one just below the middle of
> > the mask when held on the horizontal, another just below the middle
> > of the masks when the orientation is on the vertical. Now mark the
> > string for lenses you have. For a 12" lens, mark the cords 12" from
> > the edge of the mask, for an 8" lens mark the cords 8 inches from the
> > frame, etc. To use, place the cord between your teeth for the lens in
> > question and hold the frame and look through one of your eyes. What
> > you will see will correspond very closely to the image on the
> > groundglass as it would appear if it were at the exact place of the
> > frame.
> >
> > You can make the frame smaller, say 4X5 and use it for 8X10 by
> > marking the cord for .5X the real distance of the focal length, i.e.
> > at 6" for a 12" lens. This will give you the same view as if using
> > the full size frame with the marking at 12".
> >
> >
> >
>
>
>
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