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Transit of Venus from Nyngan
I drove to Nyngan (from Sydney) along with Joe Cali (from Canberra) to observe the transit, as weather on the coast was looking decidedly dodgy. The weather was perfect, although we did get clouded out for approx 1-2 mins during egress.
We had a variety of instruments, the attached mosaic was taken with a Canon 5D Mark II attached to an Orion 100 mm f/12.5 Maksutov, EFL = 1250 mm using Baader ND5 solar filter material. Exposures typically 1/320 s @ ISO 100. The unfiltered image (through clouds) was 1/8000 s.
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