Compare Sigma 70-200 F2.8 DG OS HSM vs Sony 55mm F1.8 ZA vs Sony 50mm F1.4 ZA
Construction
Aperture Blades
11 blades
9 blades
11 blades
Colors
Black
Black
Form Factor
Telephoto Zoom Lens
Normal Prime Lens
Normal Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Focus limiter, Tripod collar, Distance scale
Physical aperture ring
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount
Sony E-mount
Sony E-mount
Material
All-metal construction
Motor
Ring-type ultrasonic
Stepper motor
Ring-type ultrasonic
Optical Formula | Elements
24 elements
7 elements
12 elements
Optical Formula | Groups
22 groups
5 groups
9 groups
Optical Formula | Special Glass
one SLD + nine FLD elements groups
3 aspherical elements groups
2 aspherical + 1 ED element + Zeiss T* coating groups
Dimensions
Filter Diameter
82 mm / 3.23 in
49 mm / 1.93 in
72 mm / 2.83 in
Size | Diameter
94 mm / 3.70 in
64 mm / 2.52 in
84 mm / 3.31 in
Size | Length
203 mm / 7.99 in
71 mm / 2.80 in
108 mm / 4.25 in
Weight
1805 g / 63.78 oz
281 g / 9.93 oz
778 g / 27.49 oz
Function
Angle Of View
34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (wide) ~ 12.4° Diagonal | 10.3° Horizontal | 6.9° Vertical (tele)
43.0° Diagonal | 36.2° Horizontal | 24.6° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
Aperture
f/2.8 ~ f/22
f/1.8 ~ f/22
f/1.4 ~ f/16
Autofocus
Yes
Yes
Yes
Focal Length
70 mm ~ 200 mm
55 mm
50 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
Yes
No
No
Weather Resistance
Yes
Yes
Yes
Zoom Type
Internal zoom
Performance
Max Magnification
0.21x
0.14x
0.15x
Min Focus Distance
1200 mm / 47.24 in
500 mm / 19.69 in
450 mm / 17.72 in
Production
Accessory
Lens hood included
Lens Hood: ALC-SH131 (supplied)
Lens Hood: ALC-SH143 (supplied)
Debut
2018-09-25
2013-10-16
2016-07-11
Made In
Japan
Model Name
SEL55F18Z
SEL50F14Z
Reviews
Neofiliac score
74%
88%
88%
Pros
- Superb autofocus speed
- Great sharpness
- Optically stabilized
- Internal zoom
- Weather-sealed
- Comes with a tripod collar
- Beautifully built
- Weather-sealed
- Very sharp across the frame
- Exceptional sharpness
- Bright maximum aperture
- Weather-sealed
- Declickable aperture ring
Cons
- Released late in the DSLR game
- Quite expensive for a 1.8/50mm
- A bit heavy
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