100mm f2 EF

Despite the large maximum aperture, the lens remains compact. Lens group 5 moves for rear focusing, and sharp, crisp pictures are obtained at all apertures. The background blur is ideal for portraits. The USM autofocuses the lens quickly and quietly.


Focal Length & Maximum Aperture 100mm 1:2.0
Lens Construction 8 elements in 6 groups
Diagonal Angle of View 24°
Focus Adjustment Rear focusing system with USM
Closest Focusing Distance 0.9m / 3 ft.
Filter Size 58mm
Max. Diameter x Length, Weight 3.0″ x 2.9″, 1.0 lbs. / 75.0 x 73.5mm, 460g
This really is a fine lens. It’s quality is outstanding. Even at f/2 the main subject is sharp and contrasty. The usm drive is quiet and fast. It produces photos, in my opinion, nearly as good as the 135mm f/2, at 40% of the price. I can say that because I’ve owned both lens. Where it does lag, as with the 85mm f/1.8, is build quality. It may perform like a L lens, but it isn’t built like one.
Today, with most of using digitals with ap-s size sensors,the small 85mm is often the prefered choice. But the 100mm, although never as popular, is a great lens. Perhaps one of the best portrait lens you can own.
Contrast and saturation are very good – comparable with the sibling. The optional ET-65III Lens Hood is a wise addition to this lens – to retain the contrast and saturation with bright lights in/near the frame. Some CA is apparent at f/2. Wide open vignetting from the Canon EF 100mm f/2.0 USM Lens will be apparent but not bad for full-frame DSLR users – similar to or slightly better than the Canon EF 85mm f/1.8 USM Lens The Canon EF 100mm f/2.0 USM Lens is one of the better lenses available in regards to distortion – expect only a negligible amount.

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