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http://www.canon-europe.com/For_Home/Pro....3_IS_STM/
Only 260 grams, only 60.9 x 86.5mm in size. Possibly no focus breathing (0.21x at 1m).
![[Image: lens-construction.png]](http://cweb.canon.jp/ef/lineup/ef-m/ef-m55-200-f45-63-is-stm/img/spec/lens-construction.png)
One aspherical element, one UD element.
![[Image: mtf.png]](http://cweb.canon.jp/ef/lineup/ef-m/ef-m55-200-f45-63-is-stm/img/spec/mtf.png)
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Looks like it will be another winner.
Although the M line-up has only 3 lenses so far, it features very good IQ.
Now, if only Canon would release a descent M body with integrated EVF (more prosumer oriented). Obviously they don't want to cannibalize their current DSLR sales...
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Well, at least they voted for the right format.
Nikon's mirrorless system is doomed to fail IMHO. Even within AA filter the results are too soft already.
