I am going through images to post and found this image of a Common Buckeye Butterfly. This was from a trip to the Edwin B. Forsythe National Wildlife Refuge, Brigantine Division in Galloway, New Jersey. We were traveling light and I was using a Canon 300mm lens with a 1.4X Canon Teleconverter on a Canon 1D mkIV. The Canon 300mm f/4 lens has fairly close focusing especially with the 1.4X Teleconverter. But to get even closer I used a Canon 25mm extension tube behind the teleconverter. Image taken @ f/11, 1/400 sec, ISO 400.