[MF3D.FORUM:1686] Re: Using front shift to simulate camera movements?

[Tom Hubin <thubin@xxxxxxxxx>]

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