Looking to find more information regarding these two camera lenses? Check out our side by side comparison of the Sigma 18-50mm F2.8-4.5 DC OS HSM vs Sony DT 18-55mm F3.5-5.6 SAM IIto review specs, pros and cons, and which is right for you.
Sigma 18-50mm F2.8-4.5 DC OS HSM Top Features
- 18-50mm Focal Range
- F2.8 – F4.5 Max Aperture
- Image Stabilization
- Filter Thread: 67mm
- Max Format: APS-C / DX
- Sony Alpha Mount
- Weight: 395g.
- Diameter: 74mm
- Length: 89mm
- Min Focus Distance:0.3m
- Max Magnification:0.24x
Sony DT 18-55mm F3.5-5.6 SAM II Top Features
- 18-55mm Focal Range
- F3.5 – F5.6 Max Aperture
- Filter Thread: 55mm
- Max Format:
- Sony Alpha Mount
- Weight: 222g.
- Diameter: 72mm
- Length: 69mm
- Min Focus Distance:0.25m
- Max Magnification:0.34x
Our Winner: Sigma 18-50mm F2.8-4.5 DC OS HSM over Sony DT 18-55mm F3.5-5.6 SAM II
Image Stabilization
Yes
vs
No
Sharper Images at longer shutter speeds
Max Aperture – Wide
2.8
vs
3.5
Wider aperture at wide end
Max Aperture – Tele
4.5
vs
5.6
Wider aperture at tele end
Diaphgragm Blades
7
vs
Potentially more rounded and smooth bokeh
Focus Type
Internal Focusing
vs
Extending front
Length of the lens doesn’t change during focusing
Internal Zoom
Yes
vs
No
Length of the lens doesn’t change during zooming
Distance Scale
Yes
vs
No
Distance Scale to assist focusing
Focal Length – Tele
55mm
vs
50mm
5mm more Tele coverage
Optical Zoom
3.10x
vs
2.80x
More flexible focal coverage
Weight
222g
vs
395g
173g lighter
Diameter
72mm
vs
74mm
2mm smaller in diameter
Length
69mm
vs
89mm
20mm shorter
Filter Thread
55mm
vs
67mm
Smaller filters are cheaper and easier to find
Minimum Focus Distance
0.25m
vs
0.3m
can focus closer to the subject
Max Magnification
0.34x
vs
0.24x
higher magnification better for close-up shots
Sigma 18-50mm F2.8-4.5 DC OS HSM vs Sony DT 18-55mm F3.5-5.6 SAM II Specs Table
General
Sigma 18-50mm F2.8-4.5 DC OS HSM
Sony DT 18-55mm F3.5-5.6 SAM II
Brand
Sigma
Sony
Lens Type
Zoom
Zoom
Price
CHECK PRICE
CHECK PRICE
Lens Type
Standard Zoom
Standard Zoom
Lens Mount
Sony Alpha
Sony Alpha
Max Format
APS-C / DX
APS-C / DX
Focal Range
18-50mm
18-55mm
Image Stabilization
Yes
No
Colour
Unknown
Unknown
Zoom Method
Rotary (internal)
Rotary (extending)
Power Zoom
–
–
Zoom Lock
–
–
Zoom Ratio
2.8X
3.1X
Aperture
Max Aperture
F2.8 – F4.5
F3.5 – F5.6
Min Aperture
F22.0 – F36.0
Aperture Ring
No
No
Diaphragm Blades
7
unknown
Optics
Optical Elements
16
8
Optical Groups
12
7
Special Elements
2 SLD glass elements 3 aspherical elements
unknown
Focusing
Min Focus Distance
0.3m
0.25m
Max Magnification
0.24X
0.34X
Autofocus
Yes
Yes
AF Motor Type
Ultrasonic
Micromotor
Full Time Manual
No
Focus Method
Internal
Extending front
Distance Scale
Yes
No
DoF Scale
No
No
Distance Scale
Yes
No
Focus Distance Limiter
No
Unknown
Physical Specs
Weight
395g
222g
Diameter
74mm
72mm
Length
89mm
69mm
Materials
Metal mount
Unknown
Weather Sealing
No
Unknown
Filter Thread
67mm
55mm
Filter Notes
Does not rotate on focusing
–
Hood Supplied
Yes
No
Hood Code
Unknown
Unknown
Tripod Collar
No
No
Optional Accessories
–
–
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