Tony Finch wrote:
> There's also the railway clock genre, where each clock's second hand ticks or
> sweeps slightly fast, and the clock waits at the top of the minute for a
> synchronization pulse. Handles leap seconds easily, if the master clock does
> :-)
>
> http://www.youtube.com/watch?v=IvIvKiDWDks
Interesting how many variations we're finding.
What you describe is similar to cadenced exposure modes:
http://adass.org/adass/proceedings/adass96/reprints/seamanr2.pdf
An alarm is set for a particular clock tick (here in a heliocentric timescale)
and this acts as a governor on an otherwise undisciplined sequence of
exposures, perhaps extending over multiple sessions.
Rob
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