According to trust source from CR. The long rumored EF 100-400mm f/4.5-5.6L IS II USM lens will be finally hit on the market in November 2014. A demo version of this lens is already send to select photographers hands for field use.
From CR:
The new design resembles the EF 70-300 f/4-5.6L IS with a thin focus ring at the base, and a wider zoom ring near the front element. The aperture range for the lens will remain at f/4.5-5.6. Another mentioned feature is in the lens hood for the lens. It sounds like there will be a retractable opening near where a filter would be, so you could turn your circular polarize easily if you needed to.
via: CR
Read More: Canon Rumors
Affiliate Disclosure: Some of the links in this article are affiliate links. As an Amazon Associate I earn from qualifying purchases. This means if you click on the link and purchase the item, we may receive a small commission at no extra cost to you. This helps support our site and allows us to continue making comprehensive reviews.