Canon EF-M 55-200mm f/4.5-6.3 IS STM Lens Construction And MFT Charts

EF-M 55-200mm F4.5-6.3 IS STM lens construction

Canon Japan posted the lens construction and MFT charts for the new EF-M 55-200mm f/4.5-6.3 IS STM for EOS M systems.

[via DicaHub]

EF-M 55-200mm f/4.5-6.3 IS STM MFT charts

• Compactness and precision image quality is achieved through a new type of 5-group zoom system making use of short back focus and aspheric lens
• Uses a UD lens to correct chromatic aberration for excellent image quality throughout the zoom range
• The focusing mechanism employs a stepping motor and lead screw to provide quiet and smooth movie servo AF for shooting movies
• Image Stabilizer equivalent to a shutter speed 3.5 settings faster
• Maintains the EF-M lens design concept of projecting from the mount in a straight form
• Lens disposition and coatings are optimized to minimize ghosting and flare
• Uses a 7-blade circular aperture for exquisite blurred areas
• Fast autofocus is achieved for still images using a rear focus system, high-speed CPU, and optimized AF algorithm

Angle of view (horizontal, vertical, diagonal)	23 ° 20 ‘~ 6 ° 30’ · 15 ° 40 ‘~ 4 ° 20’ · 27 ° 50 ‘~ 7 ° 50’
Lens constitution	17 pieces in 11 groups
Number of blades diaphragm	7 pieces
Minimum aperture	2-32
Minimum focusing distance	1m
Maximum magnification	0.21 times
Filter diameter	52mm
Maximum length × diameter	φ60.9 × 86.5 mm
Weight	260g
Camera shake compensation effect	3.5 stages (CIPA guideline compliant)