canon 100 400mm lens

A Red fox perched on a snowbank in early spring, Algonquin Provincial Park in Ontario, Canada. - photography: Christopher MacDonald finalist of Popular Photography’s 23rd Annual Reader’s Photo Contest (April / May 2017 issue)

  • tech info: tripod-and-gimbal-mounted Canaon EOS-1D Mark IV with 100-400mm f/4.5-5.6L Canon EFIS lens at 300mm; 1/400 sec at f/5.6, ISO 1000. Edited in Photoshop CC.

Help a college student/budding marine mammal researcher out!

I’ve decided to make some calendars featuring various photos of marine mammals I’ve taken here in Alaska and try and sell them! I work on a wildlife tour boat in the summers and I help with photo-identification research with both humpback whales and killer whales; I’m in need of a new telephoto lens as the one I’ve been using for the past 6 years is just not quite powerful enough for what I’m using it for. All proceeds from these calendars will go towards purchasing a new Canon 100-400mm telephoto lens.

Each 8.5 x 13 calendar is $20 with $5 for shipping. Send me a message here on Tumblr or email me at if you’d like to order one!


Great Horned Owl Head On by Grant Brummett Photography 27 Million Views!
Via Flickr:
I photographed this close up portrait of a Great Horned Owl during the raptor free flight program today at the Arizona-Sonora Desert Museum near Tucson, Arizona, You know how I love birds and I must say this Great Horned Owl was simply stunning. I will be posting more photos of it and other birds I photographed there in the coming days. Best viewed Large click on All sizes in the menu above. Canon EOS 5D Mark II camera and Canon EF 100-400mm f/4.5-5.6L IS USM lens Some information from Wikipedia on the Great Horned Owl (Scientific Name bubo virginignus) Owls have spectacular binocular vision allowing them to pinpoint prey and see in low light. The eyes of Great Horned Owls are nearly as large as those of humans and are immobile within their circular bone sockets. Instead of turning their eyes, they turn their heads. Therefore, their neck must be able to turn a full 270 degrees in order to see in other directions without moving its entire body. An owl’s hearing is as good – if not better – than its vision; they have better depth perception and better perception of sound elevation (up-down direction) than humans. This is due to owl ears not being placed in the same position on either side of their head: the right ear is typically set higher in the skull and at a slightly different angle. By tilting or turning its head until the sound is the same in each ear, an owl can pinpoint both the horizontal and vertical direction of a sound. These birds hunt at night by waiting on a high perch and swooping down on prey. They also have 500 pounds per square inch of crushing power in their talons. An average adult human male has about 60 pounds per square inch in his hands. In northern regions, where larger prey that cannot be eaten quickly are most prevalent, they may let uneaten food freeze and then thaw it out later using their own body heat. Exposure: 0.003 sec (1/400) Aperture: f/7.1 Focal Length: 340 mm ISO Speed: 160 Exposure Bias: 0 EV Flash: Off, Did not fire


Edinburgh and beyond by Rod Goodwin
Via Flickr:
I was trying out my new (secondhand) Canon 100-400mm lens whilst waiting for the fireworks and caught a nice scene across the Forth looking towards the bridges and the Lomond Hills in Fife.