----- Original Message -----
From: "Bradley Small" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, January 23, 2001 10:07 PM
Subject: Re: [Cameramakers] Bellows and movements
> 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
-----------------------------------------
Bradley,
if you are REALLY into camera making, why don't you buy yourself a book
about a view camera and LEARN all the things you ask about?? Is it easier to
employ 50 cameramakers with you discovery of the large format?? Or where do
you think all other people got their wisdom from? E-mail answers?? George
_______________________________________________
Cameramakers mailing list
[EMAIL PROTECTED]
http://rmp.opusis.com/mailman/listinfo/cameramakers
