I have not photographed as many Dragonflies this year as I have in other years. Maybe because I have been working on a few personal projects. I found these female Great Blue Skimmers at Plainsboro Preserve which is a Preserve and Nature Center along with an Audubon Center. It is about 1,000 acres, with a 50 acre lake and miles of nature trails. So it is a fun place to wander around and look for photo subjects, especially Dragonflies! On this day we mostly saw Great Blue Skimmers. Lately I use a 300mm f/4 Canon lens with a 1.4X Teleconverter for photographing Dragonflies. It allows me to get close images and seems to work well @ f/11 for getting detail, but still have a somewhat soft background. Sometimes I will go to f/8 for the series if the background is busier and shoot a series with more focus points. I then blend the images in Photoshop, to keep a softer background for my Dragonfly images but still get more of the dragonfly in focus.