Compare Sigma 40mm F1.4 DG HSM vs Sigma 50mm F1.4 DG HSM
Construction
Aperture Blades
9 blades
9 blades, Rounded diaphragm
Form Factor
Normal Prime Lens
Normal Prime Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Distance scale, DoF scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony A-mount, Sony E-mount, Leica L-mount
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Optical Formula | Elements
16 elements
13 elements
Optical Formula | Groups
12 groups
8 groups
Optical Formula | Special Glass
3 FLD + 3 SLD elements groups
SLD glass elements, aspheric elements groups
Dimensions
Filter Diameter
82 mm / 3.23 in
77 mm / 3.03 in
Size | Diameter
88 mm / 3.46 in
85 mm / 3.35 in
Size | Length
131 mm / 5.16 in
100 mm / 3.94 in
Weight
1200 g / 42.40 oz
815 g / 28.80 oz
Function
Angle Of View
56.8° Diagonal | 48.5° Horizontal | 33.4° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
Aperture
f/1.4 ~ f/16
f/1.4 ~ f/16
Autofocus
Yes
Yes
Focal Length
40 mm
50 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
Yes
Performance
Max Magnification
0.15x
0.18x
Min Focus Distance
400 mm / 15.75 in
400 mm / 15.75 in
Production
Accessory
Lens hood included
Debut
2018-09-25
2014-01-06
Made In
Japan
Japan
Reviews
Neofiliac score
74%
74%
Pros
- Beautiful rendering
- Bright maximum aperture
- Weather-sealed
- Superb sharpness
- Exceptional sharpness
- Solid build quality
- Bright maximum aperture
Cons
- Quite large and heavy for a normal lens
- On the heavy side
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