Re: Newbie with questions

[P3D Paul Albers <PAlbers@xxxxxxxxxxx>]

P3D Dr. George A. Themelis' wrote:'
> 
> >Is there any way you could yoke two rockets together (side-by-side, with
> >several feet between) & put a camera in each?
> >Jim C.
> 
> >Not so fast! You could have the rocket eject two 2D cameras, which hang
> >down from their own parachutes (thus pointing straight dwn), take
> >circular photos, and are timed to photograph a certain time after going to
> >zero-G (for instance). You could put a spring in to push the cameras
> >apart, or just rely on turbulence of the air to get the proper separation 
> >on some of the launches.
> >John R
> 
> In case you don't get it, we are a group with great imagination!  How about
> switching from modle (I assume you mean "model"?) rocketry to hot air balloons
> or something?

I've got all the hobbies I can afford right now thanks.

> Trying to take stereo pictures from a rocket presents the following
> problems:
> 
> 1. The rocket is moving in the wrong direction (vertically instead of 
>    horizontally).
> 
> 2. It is at a high elevation which makes a single stereo camera useless (we
>    often rely in the 1/30 rule which states that the separation of the lenses
>    should be 1/30 the distance of the closest object; if the closest object
>    is a flat ground, then more separation is recommended).
> 
> 3. It is moving too fast, resulting in blurred pictures for the slower
>    shutter speeds of most cameras.

Durring the rockets decent on parachute, the speed and orientation can
be controled enough that they aren't so much the problem.  The real
killer is the large amount of separation needed, together with the
physical limits of modle rockets.  

I think I will look for the tallest possible model rocket design
see how far apart I can put two cameras in it, and then see what kind
of altitude I need to restrict myself too.

Paul
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