T-Storm threatening Tucson

On the way home last night just before sunset, I saw a potential thunderstorm coming in to Tucson from the southeast so I took a detour up to A Mountain (aka Sentinal Peak).  It's got such a pretty view of Tucson.  This image was taken with my Canon 70D and my new 18-250mm Sigma lens at 18mm focal length.  The exposure was 1/60 seconds at f/5, ISO 400 and it was the central image in a set of 5 shots that I turned into a panorama seen below.

This panorama was stitched together with Hugin Panorama Creator using essentially the default batch settings.

This image was taken later as a time exposure with an ND2 filter.  The exposure was 30 seconds at f/16, ISO 100 with my lens at 18mm focal length.  This image is looking southeast, not far from the direction of the first image above.  I wasn't thinking or I would have made another panorama, but I didn't take the other 4 images....

T-storm over Mexico

Last night we had a late start due to clouds overhead, but in the distance, we were treated to a thunderstorm. The orange glow at left is from the border town of Nogales (both Arizona, and Mexico) indicating the the storm is near the border. The lightning bolt just right of center almost looks like it is hitting close to home, but it is really about 50 miles away. The dome right of the lightning bolt is that of the 84 inch telescope on Kitt Peak. Just visible in the foreground, just left of center is our Spacewatch 1.8-meter dome. This image was taken at 41mm focal length with an exposure of 30 seconds at f/5, ISO 800.

Toroweap Thunderstorm

This image is from a trip to Torroweap Overlook about 4 years ago. A thunderstorm approaches from the east from near the campground not far from Toroweap Point and Toroweap Overlook. I highly recommend the area despite a 60 mile drive on a dirt road. Only the last few miles need some extra ground clearance of a 4WD or pickup. This image was taken with my old Fuji Finepix 2650.