You can shoot absolutely everything. Attacks on the use as a portrait painter have no basis. For a portrait, 100-105 mm at the long end is fine. If you use a lens to replace a pair of lenses: 24-70 and 70-200, then you get a huge weight gain. The 24-70 and 70-200 Canon lenses are all excellent, both with and without a stub, both with aperture 2.8 and aperture 4 (70-200 of course). But carrying two lenses without the need to use them is a bit heavy. One of the pair may not be enough. And itβs better to take a photo walk from 24-105.
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