Ok, next couple questions.
re:4x5 camera.
I saw a bunch of cameras yesterday afternoon. A bender, some calumets, graflexes and a
few that I can't even remember the names (I hadn't heard them before and they didn't
stick.) Now I have even more questions than before :)
How long should the bellows be? I am assuming that the longer is for closeup and the
shorter is for infinty and wide angle.
How much movement is necessary? I assume at some point it is no longer useful. I
assume each of these movements has a name.
Left/right? Up/down? Rotation left/right? Rotation Up/Down?
Should both the back and the lens have movements, or just the lens?
Anyone have any ideas on back rotation? Spring back construction? I saw graflock backs
on two different cameras, but in absence of one of these mechanical marvels, how would
you manage the spring part of this back, I was considering breaking a couple mouse or
even rat traps to make center mounted spring arms. I am sure someone has already come
up with a better way.
I also say a fresnel on one of the viewing scrren, this may sound naieve but it looked
exactly like those full page magnifiers that you use on a small print book. Would one
of these work or is ther some special quality that they need to possess?
While I am on this, how big is an actual ground glass for a 4x5? What is the purpose
of the lines. Some had a grid, some had little corner hash marks some didn'thave any
lines at all. If I make my own glass, could I just pencil these on? What is the normal
thickness of a ground glass, looked like 1/8" or so, guess I could steal one out of
one of those dimestore picture frames and frost it somehow. Is it only frosted on one
side? Could I just get that etching cream or do I have to take ti to a sand blaster?
Lenses seemed to all be on something like a 4"x4" (or possibly 10x10cm?) lens boards
is this a standard size? If it is, what are the exact dimensions of these lens boards,
how thick are they?
-- Bradley
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