Canon EF 70-200mm f/4 L IS USM: specifications and reviews
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EF 70-200mm f/4 L IS USM
No / n.a.
0.21x (35mm. equiv)
2 ultra low dispersion, 1 fluorite
It is an amazing lens. It is truly outstanding when used on APS-C DSLRs and it suffers only from a minor quality deteriorations on full format DSLRs. The resolution figures are easily on prime levels throughout the whole range and even at max. aperture. [...] Lateral CAs and distortions are usually also nothing to worry about. [...] The build quality is excellent.