Basic Guidelines: In the strictest sense, nature photography should not include "hand of man elements". Please refrain from images with buildings or human made structures like roads, fences, walls. Pets are not permitted. Captive subjects in zoos, arboretums, or aquariums are permitted, but must be declared, and must focus on the subject, not the captivity. Images with obvious human made elements will likely be deleted from the thread, with an explanation to the photographer. Guidelines are based on PSA rules governing Nature photography which also cover the Nature Forum. Keep your image at/under 1000 pixels on the long axis for in-line viewing. Note that this includes photos hosted off-site at Flicker, Photobucket, your own site, etc Each member please post no more than just one image to this weekly thread per week. If the information is available, many members appreciate information on your approach to making the image and the names, both common and scientific, of the subject(s). However, while encouraged, these are not required as a component of your contributions. Humpback Whales (Megaptera novaeangliae) blowing near Juneau, Alaska. Nikon D500 + Nikkor 200-500mm/5.6 @ 200mm/6.3, 1/4,000s, ISO 180. Processed in LR5. I found shooting conditions far more challenging than I had anticipated, what with shooting from a small, moving boat in choppy seas, highly variable lighting, and subjects which would appear and disappear quickly and without much in the way of warning. I was shooting in manual mode with auto-ISO, and making full use of the D500's high frame rate and massive buffer, trying to catch whales as they would breach, blow, and dive. Due to the variable thick clouds and bright sunlight we experienced extreme dynamic ranges, combined with unpredictable shooting angles as both the boat and whales moved continuously.