It's that time of the week - the weekly quiz results for last week's quiz!

The question was: "Which of these lenses features a Hybrid IS system to correct for angle and shift shake?" 

The answer is the EF 100mm f/2.8L IS Macro USM lens. Well done to 72% of you who entered, guessing correctly. The other 28% all went for the same lens - the EF-S 18-200mm IS lens. 

The Hybrid IS system was announced in July this year, before the EF 100mm Macro IS lens was announced. 

You can read more about the Hybrid IS system in our coverage at the announcement here: Hybrid IS?

In short though, the IS system works to combat two types of camera shake now. A normal IS system compensates for IS of an angular nature. This means that to the camera and lens, camera shake looks like it is a rotation around a point - the point being the camera. However, when shooting with a macro lens camera shake appears to be more of an up and down and side-to-side motion where the whole camera and lens shifts parallel to the subject and this is what the Hybrid IS corrects for. 

Thanks to everyone that entered, keep your eyes out for the next quiz question!