Canon EF 50mm f1.8 II vs Canon EF 40mm f2.8 STM Side By Side Comparison

Looking to find more information regarding these two camera lenses? Check out our side by side comparison of the Canon EF 50mm f1.8 II vs Canon EF 40mm f2.8 STMto review specs, pros and cons, and which is right for you.

Canon 50mm f1.8 II Top Features

50mm Focal Range
F1.8 Max Aperture
Filter Thread: 52mm
Max Format: 35mm FF
Canon EF Mount
Weight: 130g.
Diameter: 68mm
Length: 41mm
Min Focus Distance:0.45m
Max Magnification:0.15x

Canon 40mm f2.8 STM Top Features

40mm Focal Range
F2.8 Max Aperture
Filter Thread: 52mm
Max Format:
Canon EF Mount
Weight: 130g.
Diameter: 68mm
Length: 22mm
Min Focus Distance:0.3m
Max Magnification:0.18x

Our Winner: Canon EF 50mm f1.8 II over Canon EF 40mm f2.8 STM

Focal Length – Tele	50mm vs 40mm	10mm more Tele coverage
Max Aperture – Wide	1.8 vs 2.8	Wider aperture at wide end
Max Aperture – Tele	1.8 vs 2.8	Wider aperture at tele end

Pros Of Canon EF 40mm f2.8 STM over Canon EF 50mm f1.8 II

Focal Length – Wide	40mm vs 50mm	10mm Wider coverage
Diaphgragm Blades	7 vs 5	Potentially more rounded and smooth bokeh
Length	22mm vs 41mm	19mm shorter
Minimum Focus Distance	0.3m vs 0.45m	can focus closer to the subject
Max Magnification	0.18x vs 0.15x	higher magnification better for close-up shots

Canon 50mm f1.8 II vs Canon 40mm f2.8 STM Specs Table

Detailed comparison of specifications

General	Canon 50mm f1.8 II	Canon 40mm f2.8 STM
Brand	Canon	Canon
Lens Type	Prime	Prime
Price	CHECK PRICE	CHECK PRICE
Lens Type	Standard Prime	Standard Prime
Lens Mount	Canon EF	Canon EF
Max Format	35mm FF	35mm FF
Focal Range	50mm	40mm
Image Stabilization	No	No
Colour	Black	Black
Zoom Method	No Zoom	No Zoom
Power Zoom	No	No
Zoom Lock	No	No
Zoom Ratio	1.0X	1.0X
Aperture
Max Aperture	F1.8	F2.8
Min Aperture	F22.0	F22.0
Aperture Ring	No	No
Diaphragm Blades	5	7
Optics
Optical Elements	6	6
Optical Groups	5	4
Special Elements	unknown	1 aspherical element
Focusing
Min Focus Distance	0.45m	0.3m
Max Magnification	0.15X	0.18X
Autofocus	Yes	Yes
AF Motor Type	Micromotor	Stepper motor
Full Time Manual	No	Yes
Focus Method	Unit	Unit
Distance Scale	No	No
DoF Scale	No	No
Distance Scale	No	No
Focus Distance Limiter	Unknown	Unknown
Physical Specs
Weight	130g	130g
Diameter	68mm	68mm
Length	41mm	22mm
Materials	Plastic barrel, plastic mount	Unknown
Weather Sealing	No	No
Filter Thread	52mm	52mm
Filter Notes	–	–
Hood Supplied	No	No
Hood Code	ES-62	Unknown
Tripod Collar	No	No
Optional Accessories	Hard Case LH-B9 Soft Case ES-C9/LP1014	–
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