rancho hidalgo

At Rancho Hidalgo, I set up the Canon with my standard 28-135 zoom and the tracker head.  The tracker has a small polar scope, and the alignment just uses that.  I shot constellation scale tests, mostly at 28mm with ASA from 1600 to 6400. Here’s a 3 minute exposure of the Scorpius region at 6400.  … Read more