On the other side of the coin, the Nikkor features a constant f5.6 focal ratio, compared to the f5-6.3 of the Sigma and Tamron. The Tamron lens is lower-priced too, as is the Contemporary version of the Sigma. Most obviously the Sigma and Tamron 150-600mm lenses start wider and end longer with a 4x range versus just 2.5x on the Nikkor. The price of the new Nikkor is also roughly similar to the higher-end Sports version of Sigma’s 150-600mm, but there are of course differences. Indeed at first glance, the AF-S 200-500mm f5.6E would seem like a response to the popular 150-600mm zoom options from Sigma and Tamron which filled a gap missing from both Nikon and Canon’s catalogues. Announced in August 2015, it represents a new category in the Nikkor range, offering a super-telephoto range at a comfortably lower price than the existing AF-S 80-400mm f4.5-5.6 VR II not to mention a fraction of the high-end AF-S 200-400mm f4G VR, while out-reaching either of them. The Nikkor AF-S 200-500mm f5.6E ED VR is a super-telephoto zoom designed for Nikon DSLRs.
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