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new Canon lens
#1
EF-S 55-250mm f/4-5.6 IS STM

 

http://www.usa.canon.com/cusa/consumer/p...5_6_is_stm

 

Besides the new STM drive it also features a new optical design.

 

manufacturer MTFs:

http://cweb.canon.jp/ef/lineup/ef-s/ef-s...ec/mtf.png

 

vs old

http://cweb.canon.jp/ef/lineup/ef-s/ef-s...ec/mtf.png

 

And soon here in the zone.  Big Grin

#2
And a very different optical design too... It went from a 12 elements 10 groups design to a 15 elements 12 groups design.

old:

[Image: lens-construction.png]

new:

[Image: lens-construction.png]

  


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