C/2011L4 (PanSTARRS), 2013-05-27.

The skies cleared after weeks of bad weather and with the moon rising just after midnight I had a go at the comet again although it doesn’t get really dark this time of year. I was able to take a sufficient number of shots between 21.45-22.00 (UT) before cirrus clouds started to drift across the field of view. 
Below is a quick, negative converted, jpg-stack of 25 x 45s.
Equipment used: Canon 5Dii and EF135mm/2L at F3.2, ISO800, tracked with Vixen Polarie star tracker. Polaris is to the lower left.
Will try a proper stack (raw + flat + gradient removed) this weekend.