Tamron 18-300mm F3.5-6.3 B061 RF vs Sigma 18-50mm f/2.8 DC DN Contemporary
Both are Canon RF lenses for APS-C. Here is what actually differs.
Pick the Tamron 18-300mm F3.5-6.3 B061 RF if
- You need more reach: 300mm vs 50mm at the long end
- You shoot handheld in dim light or video: it has optical image stabilization and the Sigma 18-50mm f/2.8 DC DN Contemporary does not
- You want bigger close-ups: 0.5× vs 0.36× maximum magnification
- You prefer a newer design: released 2025 vs 2021
Pick the Sigma 18-50mm f/2.8 DC DN Contemporary if
- You need ⅔ stop more light for low light or background blur (f/2.8 vs f/3.5)
Spec differences
15 differences| Tamron 18-300mm F3.5-6.3 B061 RF | Sigma 18-50mm f/2.8 DC DN Contemporary | |
|---|---|---|
| Brand |
Tamron
|
Sigma
|
| Type |
Superzoom
|
Zoom
|
| Focal length |
18-300mm
|
18-50mm
|
| Max aperture |
f/3.5
|
f/2.8
⅔ stop faster
|
| Weight |
not listed
|
300 g
|
| Length |
not listed
|
74.5 mm
|
| Diameter |
75.5 mm
|
69.2 mm
slimmer
|
| Filter thread |
67 mm
|
55 mm
|
| Min focus distance |
0.15 m
|
not listed
|
| Max magnification |
0.5×
larger
|
0.36×
|
| Optical design |
19 elements / 15 groups
|
not listed
|
| Autofocus motor |
VXD
|
Stepping motor
|
| Image stabilization |
Yes
stabilized
|
No
|
| Weather sealing |
Yes
|
not listed
|
| Released |
2025
|
2021
|
3 identical specs hidden: mount, format, aperture blades. Show all
- Mount
- Canon RF both
- Format
- APS-C both
- Aperture blades
- 7 both
Our notes
Tamron 18-300mm F3.5-6.3 B061 RF
Tamron 18-300mm F3.5-6.3 B061 RF: a superzoom lens with a 18-300mm focal length and a maximum aperture of f/3.5-6.3, made for Canon RF mount cameras. The wide-to-tele range makes it a one-lens option for travel and everyday shooting.
Our notes
Sigma 18-50mm f/2.8 DC DN Contemporary
More comparisons
Canon RF 10-20mm F4 L IS STM vs Tamron 18-300mm F3.5-6.3 B061 RF
wider (10mm) vs ⅓ stop faster
Canon RF 15-35mm F2.8 L IS USM vs Sigma 18-50mm f/2.8 DC DN Contemporary
wider (15mm) vs 540 g lighter
Canon RF 14-35mm F4 L IS USM vs Tamron 18-300mm F3.5-6.3 B061 RF
wider (14mm) vs ⅓ stop faster
Canon RF 24-105mm F2.8 L IS USM Z vs Sigma 18-50mm f/2.8 DC DN Contemporary
more reach (105mm) vs 1030 g lighter
Tamron 18-300mm F3.5-6.3 B061 RF vs Sigma 16-300mm f/3.5-6.7 DC OS Contemporary
Sigma 16-300mm f/3.5-6.7 DC OS Contemporary: wider (16mm), more blades
Sigma 18-50mm f/2.8 DC DN Contemporary vs Tamron 11-20mm f/2.8 Di III-A RXD
more reach (50mm) vs wider (11mm)