Post by nakedgun on Jan 4, 2019 9:05:40 GMT -6
Near 2% illumination:
Pentax K-5IIs, DFA 150-450 @ 450, f/5.6
Pentax K-5IIs, DFA 150-450 @ 450, f/5.6
 773-299-8171
Email: guzman@chicagoastronomer.com Facebook: Chicago Astronomer
Twitter: Astronomer Joe Google+ Chicago Astronomer
6 Continents strong... Copyright 2004-2014 All rights reserved by Joseph Guzman Administrator/Founder/Chief Astronomer. All text and images are the property of the original authors/artists and shall not be used without permission.  |