I am a Sports Photographer specializing in Horse Racing. I need a lens that delivers crisp, sharp images and this lens does the job! I use a 5D Mark iii with this lens. I am petite size female, and amazingly I can use this lens hand-held without a...

I bought this as an upgrade for my current f4.5 EF 300. I wanted betterr magnification than the old 300 (or my 200-400 zoom). Ideally I would like a 600mm f2.8 that was as light as this lens. I'm a bird photographer and am always reaching for more...

Since this is my fourth Canon 300mm f/2.8 lens, I'm very aware of its evolution over the last 30 years. Each model has come with improvements both optically, and mechanically, but secrectly I've always longed for the size/weight of my original, the new...

Ridiculous was an adjective used by someone I know, when other superlatives were too weak in their description. There are a couple of lenses in my arsenal that are considered by many to be reference standards. But this one even leaves those behind and...

I am an inexpert bird photographer, and have graduated from a 70-200 L IS with a 1,4xTC, then a 400m L f/5.6 and a 100-400mm L. They are all fine lenses, and I love my 100-400mm for travel as it is light enough and is small when the barrel is...

I purchased the new 300mm 2.8 after much debate and waiting on the release of the new generation of supertelephotos from Canon. I was considering everything from this lens up to the 600mm f 4, but because of the delay for the longer lens and the great...