Hey Norm, Good question. The Sigma 105mm f/2.8 EX DG OS HSM Macro Lens for Canon EF is perfectly compatible with all Canon EF bodies including the 7D Mark II. I have never ussed it but it generally receives very good reviews. Compare it with either the Canon EF 100mm f/2.8 Macro USM Lens or the newer Image Stabized (IS) version, the Canon EF 100mm f/2.8L Macro IS USM Lens. Note: the Sigma version offers an Optical Stabilizer system that enables folks to create sharper images when shooting handheld.

Sigma also offers a Nikon mount version, the Sigma 105mm f/2.8 EX DG OS HSM Macro Lens for Nikon F.

Most of the 90, 100, and 105mm macro lenses do not come with a tripod collar so if you are planning to work on a tripod as I do most of the time, you will need to explore the tripod collar options.

We are however, not quite done 🙂 When I used Canon, I owned the 100 IS macro and the Canon EF 180mm f/3.5L Macro USM Lens. For flowers, especially cultivated flowers like dahlias and tulips, the 100 macro was great. But for generally smaller wildflowers, frogs, bugs, and butterflies, I loved the longer focal length of the 180 macro. That brings us to the last alternative, the Tamron Telephoto SP AF 180mm f/3.5 Di LD IF Macro Autofocus Lens for Canon EOS. Here again, the off-brand Tamron 180 has a great reputation. Do understand that the Sigma and Tamron lenses will save you considerable money while producing excellent results …

All in all, it is your call. Do let me know if you have any additional questions and please remember to use my affiliate links for this and other purchases.