WAITING FOR THE SHADOW

     ASTROPHOTOGRAPHY by Joseph Cali

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"Window to the Sky - Star Trails"

Pentax K1 ISO3200, Samyang 14mm f2.8,  102 x 30s stacked.
The raw data for this was acquired for a time lapse. The star trail was an afterthought.
In camera dark frame subtraction left gaps between each sub-exposure, thus the
fastest moving stars near the celestial equator have separated into dots.









"The Leaning Shed  of Back Creek - , NSW, Star Trails"
Pentax K1 ISO 2500,  Samyang 14mm f2.8, 60 x 15s stacked.
The raw data for this was also acquired for a time lapse. I didn't have a star trail in mind at the time. In camera dark frame subtraction left gaps between each sub-exposure. Lots of passing cloud has contributed to the bigger breaks resulting in this 'dotty streaky' star trail.


 




"South Celestial Pole"

I spent a full night out on November 30th, 2018. While the camera was collecting photons, I had plenty of time to look around
with binoculars and naked eye. I saw a handful of fireballs in the southrn sky during the small hours of the morning that left long
 persisting vapour trails. Next night out, I set up my Pentax K5 on a fixed tripod and shot hundreds of 30s exposures. I only saw one
fireball and it occurred in the gap between two exposures.    Pentax K5, ISO 6400, 226 x 30s,  Pentax 10-17mm f3.5 fisheye.







Pentax K1  ISO 3200  Samyang 14mm f2.8  156 x 10s exposures 

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