Canon
EF 8-15mm f/4L USM
 vs
Canon
EF 17-40mm f/4L USM

vs

differences

Reasons to consider the Canon EF 8-15mm f/4L USM
Fisheye lens Yes vs No
Help
 Fisheye lenses take extremely wide 'circular' looking images
More magnification 1:2.6 (0.4x) vs 1:4 (0.2x)
Help
 Take macro shots with subjects around 60% larger in your photo
Slightly shorter 83 mm vs 97 mm
Help
 More than 10% shorter
Canon EF 8-15mm f/4L USM Learn more about
the Canon EF 8-15mm f/4L USM

Reasons to consider the Canon EF 17-40mm f/4L USM
Slightly cheaper $739.00 vs $1,349.00
Help
 The best price we've seen is $610 cheaper (around 50% less)
Slightly better telephoto 40 mm vs 15 mm
Help
 More than 2.5x more reach, less perspective distortion
Slightly more zoom 2.4x vs 1.9x
Help
 Around 30% more zoom, giving you more flexibility for photos
Canon EF 17-40mm f/4L USM Learn more about
the Canon EF 17-40mm f/4L USM

similarities

Compared to lenses

Common Strengths Common Weaknesses
Fixed aperture Constant aperture lenses Help
The same aperture at all focal lengths
Focus motor Silent focus motor Help
Silent and fast
Prime lens Both are zoom lenses Help
Typically not as sharp as prime lenses
Aperture Very narrow widest aperture size Help
f/4
Max focal length Poor telephoto Help
EF 8-15mm f/4L USM:15 mm
EF 17-40mm f/4L USM:40 mm

competitors

Shared Competitors

Advantages

Disadvantages
Canon EF 16-35mm f/2.8L II USM

Canon EF 16-35mm f/2.8L II USM

Fisheye lens

$1,699
Aperture Has a wider aperture
Compare the EF 16-35mm f/2.8L II USM vs the EF 8-15mm f/4L USM
Compare the EF 16-35mm f/2.8L II USM vs the EF 17-40mm f/4L USM
Canon EF-S 10-22mm f/3.5-4.5 USM

Canon EF-S 10-22mm f/3.5-4.5 USM

Wide angle lens

$759
Wide maximum Has a higher max f/stop
Fixed aperture Has a variable aperture
Compare the EF-S 10-22mm f/3.5-4.5 USM vs the EF 8-15mm f/4L USM
Compare the EF-S 10-22mm f/3.5-4.5 USM vs the EF 17-40mm f/4L USM
Sigma 12-24mm f/4.5-5.6 Canon-ef

Sigma 12-24mm f/4.5-5.6 Canon-ef

Wide angle lens

$859
Focus motor Lacks a silent focus motor
Fixed aperture Has a variable aperture
Compare the 12-24mm f/4.5-5.6 Canon-ef vs the EF 8-15mm f/4L USM
Compare the 12-24mm f/4.5-5.6 Canon-ef vs the EF 17-40mm f/4L USM

Canon EF 8-15mm f/4L USM Competitors

Advantages

Disadvantages
Canon EF 14mm f/2.8L II USM

Canon EF 14mm f/2.8L II USM

Fisheye lens

$2,159
Prime lens Is a prime lens
Aperture Wider aperture
Magnification Less magnification
Lowest price More expensive
Compare the EF 14mm f/2.8L II USM vs the EF 8-15mm f/4L USM
Canon EF 15mm f/2.8

Canon EF 15mm f/2.8

Fisheye lens

$646
Prime lens Is a prime lens
Aperture Wider aperture
Focus motor Doesn't have a silent focus motor
Magnification Less magnification
Compare the EF 15mm f/2.8 vs the EF 8-15mm f/4L USM
Samyang 8mm f/2.8 Fish-eye Samsung-nx

Samyang 8mm f/2.8 Fish-eye Samsung-nx

Wide angle lens

$349
Prime lens Is a prime lens
Aperture Wider aperture
Fisheye Not a fisheye
Focus motor Doesn't have a silent focus motor
Compare the 8mm f/2.8 Fish-eye Samsung-nx vs the EF 8-15mm f/4L USM
Sigma 15mm f/2.8 EX DG Canon-ef

Sigma 15mm f/2.8 EX DG Canon-ef

Fisheye lens

$609
Prime lens Is a prime lens
Aperture Wider aperture
Focus motor Doesn't have a silent focus motor
Magnification Less magnification
Compare the 15mm f/2.8 EX DG Canon-ef vs the EF 8-15mm f/4L USM
Tamron 14mm f/2.8 IF Nikon-f

Tamron 14mm f/2.8 IF Nikon-f

Wide angle lens

$799
Prime lens Is a prime lens
Aperture Wider aperture
Fisheye Not a fisheye
Focus motor Doesn't have a silent focus motor
Compare the 14mm f/2.8 IF Nikon-f vs the EF 8-15mm f/4L USM

Canon EF 17-40mm f/4L USM Competitors

Advantages

Disadvantages
Canon EF 24-70mm f/2.8L USM

Canon EF 24-70mm f/2.8L USM

Wide angle lens

$1,280
Aperture Wider aperture
Max focal length Slightly better telephoto
Weight Heavier
Length Slightly longer
Compare the EF 24-70mm f/2.8L USM vs the EF 17-40mm f/4L USM
Tamron 17-50mm f/2.8 XR Di II LD Canon-ef

Tamron 17-50mm f/2.8 XR Di II LD Canon-ef

Wide angle lens

$459
Wide maximum Significantly narrower aperture
Aperture Wider aperture
Focus motor Doesn't have a silent focus motor
Magnification Slightly less magnification
Compare the 17-50mm f/2.8 XR Di II LD Canon-ef vs the EF 17-40mm f/4L USM
Canon EF 24-105mm f/4L IS USM

Canon EF 24-105mm f/4L IS USM

Wide angle lens

$1,149
Image stabilization Image stabilization
Zoom range More zoom
Lowest price Slightly more expensive
Weight Slightly heavier
Compare the EF 24-105mm f/4L IS USM vs the EF 17-40mm f/4L USM
Canon EF-S 17-55mm f/2.8 IS USM

Canon EF-S 17-55mm f/2.8 IS USM

Wide angle lens

$1,059
Image stabilization Image stabilization
Aperture Wider aperture
Magnification Less magnification
Length Slightly longer
Compare the EF-S 17-55mm f/2.8 IS USM vs the EF 17-40mm f/4L USM
Canon 24-105mm f/4L IS USM

Canon 24-105mm f/4L IS USM

Wide angle lens

$1,059
Image stabilization Image stabilization
Zoom range More zoom
Weight Slightly heavier
Lowest price Slightly more expensive
Compare the 24-105mm f/4L IS USM vs the EF 17-40mm f/4L USM

discussion Which do you think is better?

Speech is free, but discussion at LensHero is moderated! Please discuss your opinion of these lenses here, and discuss feedback for LensHero at our support community.

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