Some more comet shots from the past

I thought I posted these images when I started this blog...

 

This is an annotated and slightly cropped shot of Comet Lemmon (C/2012 F6 Lemmon) from 4/27/2013.  Looks like I shot it with at 100mm f/4 with a long gone Canon 5D mk II. 4 seconds at ISO 1600.  Approx. 4:37 am.

 

 

Tighter cropped area.

 

 

 

Based on the metadata, this was taken on 5/8/2013 at 4:03 am.  Shot with the Canon 5D mk II, 200mm F/2.8 for 10 seconds at ISO 6400.  Looking at the two focal lengths of the above shots, I believe this was the Canon 70-200mm F/2.8 lens that I owned for a few years.  It's unfortunate that I didn't attempt to take these shots with an equatorial mount and small telescope.

Apparently, this parasite-infested image shows that I did attempt a shot with a mount.  The metadata lists this as 303 second shot with a 140mm lens (again I think this is the 70-200mm f/2.8) at F/3.5.  ISO 1600.   And shot with the Canon XT (350D).   5/10/13 at 6:10 am thus the gradient from sunrise.  And of course, I'm assuming this is C2/2012 F6 Lemmon.  (Later:  I'm looking at this in Stellarium and the time must be closer to 4:10 am as the sky would be washed out in a 5 min exposure at 5 am and later.)

This is obviously not C2/2012 F6 Lemmon.  This is a common shot of Panstarrs (C/2011 L4).  Taken at the parking lot of Snowbowl on 3/12/2013.  There were easily about a dozen photographers shooting this at the same time.  Metadata says it was taken with a Canon 5D mk II, ISO 800, 2 second exposure.  The listed lens is 50mm, but I shot it through the long-gone Sky-Watcher 66mm F/6 with the .8 focal reducer.  The listed time is 7:32 pm.