środa, 22 lipca 2020

Comet C/2020 F3 (NEOWISE)

Image was taken with Pentax K-1 and vintage lens in Wisła, Poland on 23.07.2020.
The comet is barely visible with naked eye and is quite low over horizon.

Some technicalities

To achieve 1 minute exposure I used the Astrotracer - an exclusive Pentax feature.
The lens was AUTO CHINON 1:2.8 f=135mm with M42 mount. It is pretty sharp but has terrible purple fringing visible on bright stars. The lens is also vingetting a lot on full frame.