Canon EF 40mm f/2.8 STM Lens Specifications and Measurements

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Specifications	Canon EF 40mm f/2.8 STM Lens
Focal Length Range	40mm
APS-C Sensor DSLRs Only?	N
Lenses / Groups	6/4
Angle of View: Diagonal	57° 30'
Angle of View: Horizontal	49º
Angle of View: Vertical	34º

Aperture
Aperture Range - Wide / Long	f/2.8-22
Number of Aperture Blades	7
Rounded Aperture?	Y

Weight
Manufacturer Specification Weight	130g
Actual Weight	125g
Lens Hood Weight
In-Use Weight	125g

Size
Manufacturer Spec Size (DxL)	68.2 x 22.8mm
Measured Size (DxL)	70.2 x 30.1mm
Max Length at Full Extension	37.6mm
Internal Zoom? / Extends with Zoom?
Internal Focusing? / Extends with Focusing?	N / Y
Focus Extension Length	7.9mm
Lens Hood Size (DxL)
Lens Length with Hood (Min / Max)	30.1 / 37.6mm
Size of Rings - Zoom / Focus	/ 5.1mm
Filter Size	52mm
Front Element (Filter Mount) Rotates	N

Focus
AF Motor Type	STM
Full Time Manual Focus	Y
Focus Ring Rotation	120°
Focus Limiter? / Focus Limiter Ranges	N
Distance Info Provided to Camera?	Y
Distance Scale? / Type	N

Close Focus
Specified Min Focus Distance	300mm
Tested Min Focus Distance (Wide / Long)	287mm
Maximum Magnification (MM)	0.18x
MM with 12mm Extension Tube	0.50-0.32x
MM with 25mm Extension Tube	0.88-0.70x
MM with 250D Closeup Lens
MM with 500D Closeup Lens

Features
Tripod Ring Included? / Removable?	N
Zoom Ring Lock Switch?
Lens Hood Included / Model?	N / ES-52
Weather Sealed? / Filter Required?	N
Image Stabilization? / Stops? / Tripod Sensing?	N
Metal Mount?	Y
Extender Compatible?	N
Case Included? / Type?	N / LP811
1200mm x 800mm Subject Framing Distance	40mm = 1371mm

History
Year Introduced	2012