Archive for the Sony A7III Category

Abiquiu Lake After Sundown

Posted in Astrophotography, Composite, Sony A7III, Wide Angle on November 22, 2019 by budbranch

 

 

A composite of 50+ 25sec exposures stacked.  14mm lens distorts what is nearly circular motion around the Pole star.

Mercury transiting the Sun 11-11-19

Posted in Astrophotography, Solar, Sony A7III on November 11, 2019 by budbranch

Not to be seen again from North America until 2032, planet Mercury is passing between Earth and the Sun this morning – see the tiny black spot above and right of center?  Not a naked-eye event!  A filter is required to stop  potentially harmful solar radiation, (note my setup).

70-200mm @ 200, f/13 ISO 200, 1/8,000th sec w/solar filter

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