21p 20180810 jpurvis

Comet 21P/Giacobini-Zinner from last night. 16 x 45 second exposures at ISO 800 with a 135mm Samyang f/2 lens at f/2. Modified Canon 80D camera, Clip-in LPS filter. AstroTrac TT 320X AG mount. Polar aligned. Backyard EOS focusing and acquisition control Light pollution measured at 20.30 magnitude/arcsec2

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