Reviews and Problems with Canon EF 28-70mm f/2.8L USM
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Overall quality 8
Build quality 8
Canon EF 28-70mm f/2.8 USM L - Review / Test Report
9 November 2007
Conclusion: The performance of the Canon EF 28-70mm f/2.8 USM L came as a surprise because its optical quality exceeded the EF 24-70mm f/2.8 USM L (two samples tested). The lens doesn't really show any significant flaws - the resolution figures are very high and distortions and especially vignetting are very...