[MF3D.FORUM:1697] Re: Using front shift to simulate camera movements?

["Don Lopp" <dlopp@xxxxxxxxxxxxxxx>]

I hope this not too cofusing but I have never seen any stereo prism set up
or mirror set up that was capable of covering Realist formt-22x24mm without
clipping corners etc. I have built stereo cameras  and stereo viewerers but
never had much luck with add on mirrors probably do to my lack of propper
knowledge ( I have had some luck with 50mm and longer  but not with 35 mm or
less )pobably something missing in my small brain  DON
----- Original Message -----
From: "Tom Hubin" <thubin@xxxxxxxxx>
To: "Medium Format 3D Photography" <MF3D.Forum@xxxxxxxxxxxxx>
Sent: Friday, April 13, 2001 8:27 AM
Subject: [MF3D.FORUM:1686] Re: Using front shift to simulate camera
movements?


> Hello Don,
>
> First let me say that I am not promoting any method. I am an optical
> engineer and have just been responding to questions posed in this group.
> For me this is purely an academic exercise. I don't even own a camera.
>
> > I am still at a loss as to how this would work. firstlyb the angke
covered
> > woulbe quite limmited.
>
> Not true. The camera limits the field of view. Any contraption between
> the lenses and the subject can cause vignetting or clipping if not
> planned properly. If the contraption is properly designed and located
> there should be no surprises. That is, if there are to be losses they
> should be known before building it.
>
> > macro capabilities quite limmited
>
> Not limited, just different. I have not looked into that.
>
> > the presision
> > mountig of the mirrors and lenses would be a prblem for even ZEISS
>
> You exaggerate. Methinks you are tired and frustrated. Things like this
> have been built by amateurs with less thought than we are giving it.
> Maybe that is why they have a reputation for clipping. Folks in MF3d and
> P3d can probably point to some good and bad mirror devices.
>
> > and after
> > all of that what would you get that couldnot be gotten by normal means.
>
> I don't know your equipment or your preferences.
>
> What do you mean by normal means? Cameras mounted side by side on a
> slide bar? How close?
>
> What can you get with normal means?
>
> What would you like to do that you cannot do with normal means?
>
> Tom Hubin
> thubin@xxxxxxxxx
>
>