Hi all:
Recently I've been taking pics of our observatory from the roof of the
adjacent science center, in order to get some "bird'-eye-view" shots.
I'm doing this with the domes open and the telescopes pointed toward my
camera, and with the 1000mm (500/8 + 2x-A) and 500mm shots I'm spot
metering in and outside the dome (inside the domes is dark, the outside
is bright white).
Now, it'd be nice to have some radio-controlled flashes that would go
off when I fired my camera from the roof. I've calculated the one-way
light travel time, and it is ~100x shorter than a 1/1000 sec flash
duration. These wouldn't need to be TTL flash, since all they would be
doing is lighting up the interior of the dome while the shutter is open.
I could play around with apertures to get the exposure right.
So... does this sound totally silly? Anyone done anything like it
before? Anyone know how cheap radio controlled flash triggers are?
(I've got a slew of T-20's and a T-32 I can use for this project).
Thanks in advance!
Cheers,
--Lee
________________________________________________________________________
R. Lee Hawkins lhawkins@xxxxxxxxxxxxxxxxxxx
Department of Astronomy lhawkins@xxxxxxxxxxxxx
Whitin Observatory http://www.astro.wellesley.edu/lhawkins/lee.html
Wellesley College Ph. 781-283-2708
Wellesley, MA 02181 FAX 781-283-3667
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