I have been taking wild life photos for 30 years with canon lenses and the new 800 is a great improvment over the old FD 800 , if the picture is a thousand word it speeks for it self
December 20, 2012
I finally got my 800mm after waiting for one to be built for me. 3 months wait, but it was worth it. I bought this lens to photograph eagles this upcoming winter, but have shot pics of the moon with a 2x and a 7d (2560mm), man what unbelievable pictures. With this set up, you can just barely get the whole moon in the shot. Craters and seas jump right out at you. I would strongly suggest a gimball head set up. I am using an Induro set up, and love it. My Monfrotto ball head would support it ok, but when you losen it up to move it, you better have a good grip on the lens. I am so impressed with the quickness of the autofocus on this lense with out the 2x. It is as fast as any of my other L series lenses, and I own quite a few, and faster than my older ones. All in all, if you are looking for a fantastic super telephoto with unbelievable quality and speed, this is the lens. You may have to trade your first born for it, but it might be worth it.
October 19, 2010
Outstanding peice of equipment
I have used the 800 to shoot the worlds fastest motorcycles on the Bonneville Salt Flats. In five days I shoot over 7500 images. I hand hold the 800mm to shoot at 1/500 to 1/640 late in the day and use a mono-pod to rest it in between shots.
Images of motorcycles going between 200 and 350 mph are crisp and the auot-focus is perfect for this type of work. I really enjoy working with this lens and would highly recomend this setup for anyone doing similar work.
September 29, 2010
The images of the moon with this, is unreal!! I can't believe what I was watching. The photos were so close, it looks as if I were standing right in front of it. Every concealable detail was exposed, AWSOME!!!!
March 18, 2010