Excellent lens

Overall as good as I could have hoped for. It's a heavy lens but I knew that ahead of time. Extremely sharp photos. Excellent, fast autofocus. Highly recommended.

Canon EF 500mm f/4L IS II USM

I shoot daily as an amateur. I own the 300 II and the 500 II lens for birding now. Before that the 300 IS and the 500 IS. There is no comparison in the two lenses the new II series blows away the older IS period IMO. I have shot daily with it for about 1.5 years now and it is outstanding.

Finest lens I have ever used bar none

none

Canon announced two new super telephoto lenses, which will be available later this year. They are upgrades of the current EF 500/4L IS USM and EF 600/4L IS USM . Both lenses feature lower weight, improved image stabilization and a revised optical design including the addition of a second Fluorite...

Great lens - worth the high price

Decided to treat myself to a full set of high end telephoto lenses before my end stage cancer killed me. I won't have enough time left to give these lenses a thorough work out so I'll leave that to my wife.

Because aperture blades form a near circle at the wide openings used for low-light shots, spot-light sources have a pleasing circular defocused effect.