Canon EF-S 60mm f/2.8 Macro USM Fixed Lens for Canon SLR Cameras . Description: The EF-S 60mm f/2.8 Macro USM is the first true Macro lens in the EF-S series. A dynamic, compact, fast-focusing lens, it provides dramatic detail that goes beyond the human eye. Features: Approx. 96mm focal length (35mm format) Compact and lightweight Overall, then, the EF 100mm F2.8 L IS USM Macro is an easy recommendation if you're looking for exceptional image quality regardless of price. However potential buyers do need to appreciate that the increased cost over its older stablemate appears to pay mainly for the Hybrid IS system, which despite its clever technology isn't hugely useful The Canon EF 100mm f/2 USM Lens is a very sharp lens. I found the 100 f/2 to be sharp at f/2 and only improves slightly when stopped down. Well, all lenses become less sharp somewhere around and beyond f/16 because of diffraction. Corner sharpness is good as well. I'd get my EF 100mm f/2.8L IS USM at Adorama, at Amazon, at B&H or at Crutchfield, or used at eBay. Name specifications top. Canon calls this the CANON MACRO LENS EF 100mm f/2.8L IS USM: MACRO: Focuses to just a few inches. EF means "electronic focus," meaning that there is an autofocus motor in the lens itself. All Canon lenses since 1987 have EF 100mm f/2 USM: EF 135mm f/2.8 (with Softfocus mechanism)- Telephoto lenses; EF 135mm f/2L USM: EF 200mm f/2L IS USM: EF 200mm f/2.8L USM: EF 200mm f/2.8L II USM: All Specs. Canon's ambitious $1,299 RF 100mm F2.8 L Macro IS USM lens captures subjects at 1.4:1 magnification and lets you create photos with an impressionistic, soft-focus look thanks to its izUX.