Re: [photo-3d] hypers airplane and lightning

["Don Lopp" <dlopp@xxxxxxxxxxxxxxx>]

A base of 40 ft annd  150 ft base gives a sterio base of  9 miles  and 30
miles fro my experience with 35 mm lenses  50 mm lenses would be about 13
miles and 45 miles DON
----- Original Message -----
From: "John Toeppen" <toeppen@xxxxxxxx>
To: "photo-3d@xxxxxxxxxxx" <photo-3d@xxxxxxxxxxx>
Sent: Tuesday, January 09, 2001 9:14 PM
Subject: [photo-3d] hypers airplane and lightning


> Hypers from airplanes are great.  I have hypered clouds from both sides
> now.  You almost can't advance your film fast enough manually, a motor
> drive or progressive digital video would be nice, maybe burst mode in
> digital cameras.  Also, level flight and sideways shots are best.  Wing
> inclusion is annoying and window scratches are always worse on the sunny
> side of the aircraft.  Thunder clouds are impressive.
>
> Stereo lightning would be nice night photography. The shutters of both
> cameras need to remain open until the strike is over.  A friend with
> another Realist or a twin something with a cable release and B settings
> would do.  Soak in the image as night will not easily overexpose your
> shot at a nominal f 5.6 - only the lightning can do that.  Radio contact
> is probably overkill. Pointing the cameras and correcting tilt would
> seem the worst part.
>
> BTW, 40 ft separation shows depth in clouds out to about 3 miles away,
> 150 ft does 10 miles well. No trees in the foreground please....
>
> John Toeppen
> http://members.home.net/toeppen/index2.htm
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