
The inclusion of an IS system in this lens is an important benefit. Macro shooting has long been plagued by blurred images where any camera movement is increased as magnification increases. It has meant that macro images nearly always required the use of a tripod to ensure they were sharp. However, the Hybrid IS system provides up to 4 stops of IS in normal shooting so you can shoot at shutter speeds 4 stops slower than usual and obtain sharp images.
While many lenses have featured an Image Stabilizer (IS) function, the EF100mm f/2.8L Macro IS USM lens has a completely new IS system designed to offer advantages when shooting macro subjects. It’s the advantage of building IS into lenses rather than into the camera body – with the IS in the lens it can be tailored to suit the exact needs of the lens rather than using a ‘one-size fits all’ approach.
A normal IS system works by detecting angular movement (movement around a point). When using longer focal length lenses or shooting at normal shooting distances, this angular movement is very effective. However, when shooting close in, the angular movement no longer looks like a rotation around a point. Instead, it looks like the whole camera has shifted in a parallel fashion. This requires a different type of Image Stabilisation, and this is what the Hybrid IS system provides.
Zoom or Prime Prime
Focal length - wide (mm) 100
Focal length - tele (mm) 100
Max aperture - wide 2.8
Max aperture - tele 2.8
Autofocus motor USM
Lens mount Canon EF
Image stabilisation Yes
Sensor format Full Frame
Filter thread (mm) 67
Hood model ET-73
Minimum focus distance 0.3m
Weight (g) 625
Size 77.7 x 123mm
Colour Black
Lens elements 15
Lens groups 12
Aperture blades 9
Focus mechanism USM
Enlargement Ratio 1:1