Looking to find more information regarding these two camera lenses? Check out our side by side comparison of the Rokinon T-S 24mm f3.5 ED AS UMC vs Canon EF 20mm f2.8 USMto review specs, pros and cons, and which is right for you.
Rokinon T-S 24mm f3.5 Top Features
- 24mm Focal Range
- F3.5 Max Aperture
- Filter Thread: 82mm
- Max Format: 35mm FF
- Canon EF Mount
- Weight: 680g.
- Diameter: 86mm
- Length: 112mm
- Min Focus Distance:0.2m
Canon 20mm f2.8 USM Top Features
- 20mm Focal Range
- F2.8 Max Aperture
- Filter Thread: 72mm
- Max Format:
- Canon EF Mount
- Weight: 405g.
- Diameter: 78mm
- Length: 71mm
- Min Focus Distance:0.25m
- Max Magnification:0.14x
Our Winner: Rokinon T-S 24mm f3.5 ED AS UMC over Canon EF 20mm f2.8 USM
Focal Length – Tele
24mm
vs
20mm
4mm more Tele coverage
Diaphgragm Blades
8
vs
5
Potentially more rounded and smooth bokeh
Aperture Ring
Yes
vs
No
able to adjust the aperture on the lens
Minimum Focus Distance
0.2m
vs
0.25m
can focus closer to the subject
Focal Length – Wide
20mm
vs
24mm
4mm Wider coverage
Max Aperture – Wide
2.8
vs
3.5
Wider aperture at wide end
Max Aperture – Tele
2.8
vs
3.5
Wider aperture at tele end
Autofocus
Yes
vs
No
Easier, faster and more accurate focusing
Weight
405g
vs
680g
275g lighter
Diameter
78mm
vs
86mm
8mm smaller in diameter
Length
71mm
vs
112mm
41mm shorter
Filter Thread
72mm
vs
82mm
Smaller filters are cheaper and easier to find
Max Magnification
0.14x
vs
x
higher magnification better for close-up shots
Image Stabilization
No
vs
No
Reliant on in-body Image Stabilization
Weather Sealing
No
vs
No
not safe under rain and dust
Rokinon T-S 24mm f3.5 vs Canon 20mm f2.8 USM All Features
General
Rokinon T-S 24mm f3.5
Canon 20mm f2.8 USM
Brand
Rokinon
Canon
Lens Type
Prime
Prime
Price
CHECK PRICE
CHECK PRICE
Lens Type
Perspective Control Prime
Wideangle Prime
Lens Mount
Canon EF
Canon EF
Max Format
35mm FF
35mm FF
Focal Range
24mm
20mm
Image Stabilization
No
No
Colour
Black
Black
Zoom Method
No Zoom
No Zoom
Power Zoom
No
No
Zoom Lock
No
No
Zoom Ratio
1.0X
1.0X
Aperture
Max Aperture
F3.5
F2.8
Min Aperture
F22.0
F22.0
Aperture Ring
Yes
No
Diaphragm Blades
8
5
Optics
Optical Elements
16
11
Optical Groups
11
9
Special Elements
2 aspheric elements
unknown
Focusing
Min Focus Distance
0.2m
0.25m
Max Magnification
unknown
0.14X
Autofocus
No
Yes
AF Motor Type
None
Ultrasonic
Full Time Manual
N/A
Yes
Focus Method
Unknown
Rear
Distance Scale
Yes
Yes
DoF Scale
Yes
Yes
Distance Scale
Yes
Yes
Focus Distance Limiter
Unknown
Unknown
Physical Specs
Weight
680g
405g
Diameter
86mm
78mm
Length
112mm
71mm
Materials
Unknown
Plastic barrel, metal mount
Weather Sealing
No
No
Filter Thread
82mm
72mm
Filter Notes
–
–
Hood Supplied
Unknown
Unknown
Hood Code
Unknown
EW-75II
Tripod Collar
No
No
Optional Accessories
–
Hard Case LH-D13 Soft Case LP1214
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