A thunder storm

We did get an inch-and-a-half of rain and the landscape is greener.  During the storm, I tried out the video feature of the Canon 60Da because we were getting quite a lightshow.  The camera was running at 59.94 fps.  The CMOS sensor reads out from top to bottom,  so it records only partial frames of … Read more

Scutum from Rancho Hidalgo

Here’s the result using the Canon 60Da on my little tracker head.  I spent a lot of time fooling with these in Pixinsight and then Photoshop.  Unusual for this part of New Mexico, I had problems with gradients due to smoke from wildfires in Arizona.  (See https://www.jjmcclintock.com/?p=139) I believe this is stacked from  5-180 second … Read more

Canon 60Da First Light

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