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Meta and help us grow.  Take the 2-minute tour ×  In the Canon
EF 25-105mm f/4 L USM IS lens specs, it says that the lens
coating is "Super Spectra Coating". What is the Super Spectra
Coating and how it differs from other types of coating?
share|improve this question Super spectra is the same as "Double
whammy super bling extended +++ coating" - ie it is a marketing
name that by itself may or may not have some meaning. Canon say:
"Canon's multi layer Super Spectra coating allows up to 99.9% of
light through to the CMOS sensor, over a range that extends from
ultra violet to near-infrared light. As well as minimising
ghosting and flare, Super Spectra Coating ensures a consistent
colour balance across all EF lenses and plays a key part in
delivering the sharp, high-contrast results that Canon lenses
are renowned for." –  Russell McMahon Jun 4 '12 at 2:53 ie it
means "We use a coating that