This small and light Canon 100mm f/2 is sharper than the sharpest zoom I've ever used: my Canon 70-200mm f/4 L IS, and it's four times as sensitive to light, letting me shoot with one-quarter the ISO or with four-times the shutter speed in the same situation. The Canon Body speaks the EF-protocol. The Ef-RF-adapter is just a tube. No protocol-conversion is required. The lens operates at full performance and reliability. A EF-to-Sony-adapter needs to convert the electronic communication from Canon to Sony. There are three parties involved, Canon, adapter-maker and Sony. So once again, the lenses I have in mind are the Canon 100mm f/2.8 USM Macro (non-L) and the Sigma 105mm f/2.8 EX DG OS HSM Macro. Both of these lenses are excellent. I had planned on the Sigma for some time - as it appears to possibly be a bit better optically than the Canon. However I got the Canon L on sale for a lot less than the Sigma. Canon EF 100mm f/2.8 Macro USM Fixed Lens for Canon SLR Cameras Laowa 100mm f/2.8 2:1 Ultra Macro APO Lens for Canon EF Lightdow 135mm f/2.8 FE UMC Full Frame Telephoto Lens for Canon Rebel EOS 80D 77D 70D 60D 50D 7D 6D 5D 5DS 1DS T7i T7s T7 T6s T6i T6 T5i T5 T4i SL2 and SL1 Digital SLR Cameras Canon EF 100mm F2.8 L IS USM Review Samples. 30 images • Posted on Nov 11, 2009 • View gallery. The 100mm F2.8 macro is capable of delivering substantial background blur, although portrait shooters should note that technically it simply can't match its short telephoto stablemates, the EF 85mm F1.2 L II USM and 135mm F2 L USM. In general, bokeh is extremely pleasant; at macro distances it is, as we might expect, extremely smooth and The previous-generation $349 Pentax D FA 100mm F/2.8 Macro WR lens won’t be as sharp or clean but it will save you a few hundred dollars. Alternatively, you can go for the $595 IRIX 150mm f/2.8 The Canon 100mm f/2.8L IS Macro boasts L-series designation, weather sealing, and Canon’s four-stop hybrid image-stabilization system. The hybrid image-stabilization system compensates for linear and rotational shake, making image stabilization more effective at close distances. Advanced Optics and Focusing. zTGa.