I do like the LensCoat Hoodie covers and Lens coats. They are great for protecting my lenses. My latest purchase was a Hoodie cover for Canon's 70 - 200 f2.8 lens. When the lens hood is attached, it is difficult to reach into the lens hood and take off the lens cap. With the hoodie, I can forget about the lens cap. The only drawback to the hoodie is that when I turn the lens hood around on the lens for putting it in my camera bag, the hoodie wants to slide off the lens hood. This is due to the bevel that is on the lens hood. I am thinking that a little piece of velcro on the lens hood and hoodie will take care of this minor problem.

Advantages: I don't have to fumble with taking off the lens hood to take the lens cap off anymore. I just use the hoodie to cover the glass.

Disadvantages: When the lens hood is reversed ont eh lens, the hoodie wants to slide off the hood due to the bevel on the hood.

The LensCoat Hoodie Cover is very simple and does the job it was made to do which is to cover and protect your lens glass.

Advantages: It is small (compared to the cover supplied with a Canon 600mm) and easy to store when not in use. It can be folded up and slipped into a large pocket for storage.

Disadvantages: When used with a LensCoat Cover on the lens hood, the cover tends to roll back as the Hoodie Cover is pulled on and it takes a little dexterity to get the Hoodie Cover onto a large lens like the Canon 600mm. Still, overall, it is more convenient than the standard Canon cover.