P3D Re: S1 Manual Mode/Auto Mode

[Brian Reynolds <reynolds@xxxxxxxxx>]

Dr T wrote:
> >An example of when to use manual mode.....the S1 is awesome for
> >shooting hypers from a plane.....those fast 2.0 Hexar lenses,
> >comined with low ASA fillm....mean extra sharp resolution ....and I
> >manually set the camera to infinity here.
> 
> Just curious... isn't the camera going to focus at infinity by
> default in this situation (since the subject is far away)?
> 

Depending on how the camera autofocuses, it could be fooled by the
airplane window.  Certainly a Polaroid camera (which uses ultrasonic
ranging) would be fooled.  Cameras using passive optical ranging (most
35mm autofocus cameras) might be fooled by reflections, scratches, or
on the window.  Cameras using active optical ranging (e.g., send out
an IR beam and focus on the reflection) could also be fooled.

> I was thinking that I could use this camera for hyperstereos so I
> don't need to carry my SLR with me, resulting in considerable weight
> gain.  Of course, lots of film will be wasted this way.  One way to
> cut film use in half would be to put the camera in multiple exposure
> mode, shoot through one lens while covering the other and then
> quickly switch.  This way you could have a hyper of the clouds
> combined with a normal stereo of the wing (if it happens to be in
> the picture).  Has anyone tried things like that?
> 

What's wrong with taking one pair of photos, wait a few seconds (or
whatever), and taking a second pair of photos?  Wouldn't you wind up
with two pair of hyperstereos (e.g., right1/right2 and left1/left2)?
This would basically give you in camera copies.

-- 
Brian Reynolds     | "Dee Dee!  Don't touch that button!"
reynolds@xxxxxxxxx | "Oooh!"
NAR# 54438         |    -- Dexter and Dee Dee
                   |       "Dexter's Laboratory"


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