This was taken with a modified EPM2 and 25mm 1.8 lens at f/4 and ISO 800 with Hoya red enhancer. I was only able to get about 20 exposures of 3.5 min each before the clouds started to roll in. I was also combating light pollution coming from the lower right corner of the image which made post processing very challenging. This is a work in process as I am planning on continue adding more data in the next month. Cheers!