We know it's coming and now an image of the Canon RF 50mm f/1.8 STM…
Canon may announce an image-stabilised (IS) version of the EF 135mm f/2L (price & specs), the Canon EF 135mm f/2L IS, a new rumor suggests.
The announcement is said to occur in the first half of 2018. CP+ 2018, happening in March 2018 is possible stage to display the EF 135mm f/2L IS.
Some time ago, two unreleased Canon lenses have been spotted at a certification authority. There is a chance one of these lenses is the EF 135mm f/2L IS, albeit it’s a very small one.