From: Sandy King (sanking@clemson.edu)
Date: 12/15/02-02:42:56 PM Z
Shannon,
In making this kind of visualizing device you have the option of
making is same size or smaller. So do one of the following.
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".
Sandy
>Today I played with a little home-made visualizing device made out of a
>piece of cardboard with a 4x5 opening cut into it. Really I am shooting 8x10
>but I thought the smaller hole would be easier to carry around. But, it was
>confusing. I forgot at first that you have to hold it the right distance
>from your eyes to simulate the focal length of your lens; so I kept
>"finding" little scenes that I couldn't actually shoot. I guess I would
>have needed a telephoto lens. Now I am wondering if I need to make an 8x10
>hole to carry around and hold it exactly 12" from my face? Or will the 4x5
>one work if I hold it the right distance, ie about 6 inches? I have heard
>of people using these sorts of devices, but I'm not sure I'm doing it in the
>most helpful way. If you use one, I'd like to know how you use it and if
>you find it helpful.
>
> Do people ever
>shoot landscapes with telephoto lenses? If not, why not?
>
>Also, here is a question about mixing film developer, D-76 to be exact.
>Does it harm the developer if you heat the water to a higher temperature
>than the directions specify? Yesterday I poured the powder into almost
>boiling water, and then I thought. whoops, maybe that wasn't a good idea.
>
>--shannon
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