Messier 13 - Hercules Globular Cluster -
Picture is a composite of 45 X 60s RGB @Iso 800 taken with a Televue NP-101. Mouse-Over is composite of 22 x 60s @ ISO 800 taken with an NP-127is and a Canon 600D.
For a qualitative comparison, below is composite of 25 x 60s @ ISO 800 taken
