Canon EF 400mm f/2.8L IS III USM Lens Compared to the Canon EF 300mm f/2.8L IS II USM Lens

SpecificationsCanon EF 400mm f/2.8L IS III USM LensCanon EF 300mm f/2.8L IS II USM Lens
  Canon EF 400mm f/2.8L IS III USM Lens Canon EF 300mm f/2.8L IS II USM Lens
Year Introduced20182011
Mounts OnFull Frame, APS-CFull Frame, APS-C
Lenses / Groups17/1316/12
Angle of View: Diagonal6° 10'8° 15'
Angle of View: Horizontal5°10'6°50'
Angle of View: Vertical3°30'4°35'
 
Aperture  
Aperture Range - Wide / Long f/2.8-32 f/2.8-32
Number of Aperture Blades 9 9
Rounded Aperture? Y Y
 
Weight  
Manufacturer Specification Weight 100.3 oz  (2840g) 83 oz  (2350g)
Actual Weight 100.1 oz  (2835g) 82.6 oz  (2340g)
Lens Hood Weight 9 oz  (255g) 6 oz  (170g)
In-Use Weight 109.1 oz  (3090g) 88.6 oz  (2510g)
 
Size  
Manufacturer Spec Size (DxL) 6.42 x 13.5”  (163 x 343mm) 5.04 x 9.76”  (128 x 248mm)
Measured Size (DxL) 6.94 x 13.97”  (176 x 354.9mm) 5.04 x 10.07”  (127.9 x 255.7mm)
Max Diameter at Tripod Ring 6.7”  (169.1mm) 5.4”  (137.8mm)
Max Length at Full Extension 13.97”  (354.9mm) 10.07”  (255.7mm)
Internal Focusing? / Extends with Focusing? Y / N Y / N
Lens Hood Size (DxL) 7.7 x 6.41”  (195.5 x 162.7mm) 6.14 x 5.71”  (155.9 x 145mm)
Lens Length with Hood (Min-Max) 19.39 - 19.39”  (492.5 - 492.5mm) 14.93 - 14.93”  (379.3 - 379.3mm)
Size of Rings: Focus / Zoom 3”  (76.3mm) 1.94”  (49.3mm)
Filter Size DI 52mm  UV ► CP ► DI 52mm  UV ► CP ►
Front Element (Filter Mount) Rotates N N
 
Focus  
AF Motor Type USM Ring USM
Full Time Manual Focus Y Y
Focus Ring Rotation 540° 225°
Focus Limiter? / Focus Limiter Ranges Y /
8.2' (2.5m) - 23.0' (7m)
23.0' (7m) - ∞
Full
Y /
6.56' (2m) - 19.7' (6m)
19.7' (6m) - ∞
6.56' (2m) - ∞
Distance Scale? / Type Y / Window Y / Window
 
Close Focus  
Specified Min Focus Distance 98.43”  (2500mm) 78.74”  (2000mm)
Tested Min Focus Distance (Wide / Long) 96.93”  (2462mm) 78.03”  (1982mm)
Maximum Magnification (MM) 0.17x 0.18x
Magnification Range with 12mm Ext Tube 0.22-0.03x 0.22-0.04x
Magnification Range with 25mm Ext Tube 0.3-0.07x 0.28-0.09x
 
Features  
Tripod Ring Included? / Removable? Y / N Y / N
Lens Hood Included / Model? Y / ET-155 (WIII) Buy ► Y / ET-120(WII) Buy ►
Weather Sealed? / Filter Required? Y / Y / N
Image Stabilization? / Stops? / Tripod Sensing? Y / 5 / Y Y / 4 / Y
Extender Compatible? Y Y
Case Included? / Type? Y / LS400 Buy ► Y / Lens Case 300B Buy ►
47.25" x 31.5" Subject Framing Distance 400mm = 43.85'
 
23.62" x 15.75"mm Target:
560mm = 30.72' (w/ 1.4x)
800mm = 43.44' (w/ 2.0x)
300mm = 33.19'
420mm = 45.68' (w/ 1.4x)
 
600mm x 400mm Target
600mm = 33.17' (w/ 2.0x)
1200mm x 800mm Subject Framing Distance 400mm = 13367mm
 
600mm x 400mm Target:
560mm = 9362mm (w/ 1.4x)
800mm = 13240mm (w/ 2.0x)
300mm = 10117mm
420mm = 13924mm (w/ 1.4x)
 
600mm x 400mm Target
600mm = 10113mm (w/ 2.0x)
 
Review Canon EF 400mm f/2.8L IS III USM Lens Canon EF 300mm f/2.8L IS II USM Lens
 
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