Canon recently announced upgrades to a number of their top lenses, and for pro photographers these should generally be welcome. For dentists, however, there is one change that is not quite so good for one reason: the primary lens recommended for dentists and their teams, the Canon 100mm f/2.8 macro lens, has been updated to be an “L” glass (pros typically call their high-quality lenses “glass,” not “lens;” just a little FYI). What does this mean?
For practical purposes in dentistry, there is only 1 downside to this update, and that is that the new lens is more expensive than the previous lens by about $400, but without any real benefit. Sure, the image quality will be even higher, the lens will focus a bit faster, but the previous lens was completely adequate for everything we needed to do.
Click here to see the new lens.
Now, if you are a serious photographer outside the dental office, this lens does offer (to my mind) 1 truly significant improvement over the previous incarnation: it is waterproof or very water-resistant when combined with a Canon 7D, 5D Mark II, or any of the 1D series cameras. It is not water-resistant with any of the EOS Rebel series.
Due to this update, I am re-considering my usual recommendation to purchase the Canon 100mm f/2.8 macro for dental offices, and for cost reasons, many of you may want to look at the Sigma 105mm f/2.8 macro instead. If you can get your hands on one of the older versions (still available at some stores) or get a used one, then definitely go for it.