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

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SpecificationsCanon EF 40mm f/2.8 STM Lens
  Canon EF 40mm f/2.8 STM Lens
Mounts On Full Frame, APS-C
Lenses / Groups 6/4
Angle of View: Diagonal 57° 30'
Angle of View: Horizontal 49º
Angle of View: Vertical 34º
Aperture Range - Wide / Long f/2.8-22
Number of Aperture Blades 7
Rounded Aperture? Y
Manufacturer Specification Weight 130g
Actual Weight 125g
Lens Hood Weight
In-Use Weight 125g
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  UV ► CP ►
Front Element (Filter Mount) Rotates N
AF Motor Type STM
Full Time Manual Focus Y
Focus Ring Rotation 120°
Focus Limiter? / Focus Limiter Ranges N
Distance Scale? / Type N
Close Focus  
Specified Min Focus Distance 300mm
Tested Min Focus Distance (Wide / Long) 287mm
Maximum Magnification (MM) 0.18x
Magnification Range with 12mm Ext Tube 0.50-0.32x
Magnification Range with 25mm Ext Tube 0.88-0.70x
Tripod Ring Included? / Removable? N
Zoom Ring Lock Switch?
Lens Hood Included / Model? N / ES-52 Buy ►
Weather Sealed? / Filter Required? N
Image Stabilization? / Stops? / Tripod Sensing? N
Extender Compatible? N
Case Included? / Type? N / LP811 Buy ►
1200mm x 800mm Subject Framing Distance 40mm = 1371mm
Year Introduced 2012
Review Canon EF 40mm f/2.8 STM Lens
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My Recommended Retailers

Where you buy your gear matters. You expect to get what you ordered and you want to pay a low price for it. The retailers I recommend below are the ones I trust for my own purchases. Get your Canon EF 40mm f/2.8 STM Lens now from:

B&H Photo
Beach Camera or
the Canon Store (new or refurbished)
eBay (Choose trustworthy sellers only)
* Buy Now - $20.00 rebate available from Sept 3 - Sept 30
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Rent the Canon EF 40mm f/2.8 STM Lens

Do you need/want the Canon EF 40mm f/2.8 STM Lens for only a short period of time? Or, would you feel more comfortable buying after having a hands-on trial period? Consider renting. Renting is fast and easy. The rental companies I recommend below are excellent to work with. Schedule your rental now:
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