First off: this is not a review. This is a simple test under controlled conditions to evaluate image quality of these two compact L-series telephotos. A full review of the RF 70-200mm f/4L IS can be found here, while my review of the RF 70-200mm f/2.8L IS can be found here.
In November, Canon expanded their f/4 series of L zoom lenses with the RF 70-200mm f/4L IS, an extremely compact high-end lens that is barely larger than the RF 24-105mm f/4L IS. At $1,600, it’s not a cheap lens, but it is still a full $1,100 less expensive than its also compact, faster brother, the RF 70-200mm f/2.8L IS.
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