Sigma
18-50mm F2.8 DC DN Contemporary
Fujifilm X Mount
18-50mm F2.8 DC DN Contemporary — 18–50mm f/2.8 for Fujifilm X, a popular choice in the sigma lineup.
$549
Launch priceReleased Apr 2023
Sigma
70-200mm F2.8 DG DN OS Sports
Sony E Mount
70-200mm F2.8 DG DN OS Sports — 70–200mm f/2.8 for Sony E, a popular choice in the sigma lineup.
$1,499
Launch priceReleased Jul 2023
70-200mm F2.8 DG DN OS Sports is 3 months newer.
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Wins
18-50mm F2.8 DC DN Contemporary
Wins
70-200mm F2.8 DG DN OS Sports
2 categories tied
Which would you choose?
TL;DR — Key differences
- B70-200mm F2.8 DG DN OS Sports has higher OIS effectiveness (5 stops vs 0 stops)
- A18-50mm F2.8 DC DN Contemporary has lower Weight (285 g vs 1345 g)
- A18-50mm F2.8 DC DN Contemporary has lower Min focus distance (12.1 cm vs 38 cm)
- A18-50mm F2.8 DC DN Contemporary has lower Length (76.8 mm vs 238 mm)
- A18-50mm F2.8 DC DN Contemporary has higher Max magnification (0.36 × vs 0.25 ×)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to share
18-50mm F2.8 DC DN Contemporary
⌀62 × 77 mm
285 g (0.63 lb / 10.05 oz)
Credit card
85.6 × 54 mm
for scale
70-200mm F2.8 DG DN OS Sports
⌀81 × 238 mm
1345 g (2.97 lb / 47.44 oz)
18-50mm F2.8 DC DN Contemporary is 161mm shorter and 19mm narrower than 70-200mm F2.8 DG DN OS Sports.
18-50mm F2.8 DC DN Contemporary is 1060 g lighter than 70-200mm F2.8 DG DN OS Sports.
Diameter (⌀) is the maximum barrel width; length is measured from the mount to the front of the lens.
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
Why pick one over the other
Reasons to choose the 18-50mm F2.8 DC DN Contemporary
- ✓
Special elements
Adds 1 SLD, 3 Aspherical
- ✓
Weight
285 g vs 1345 g — lower is better
- ✓
Min focus distance
12.1 cm vs 38 cm — lower is better
- ✓
Length
76.8 mm vs 238 mm — lower is better
- ✓
Diameter
61.6 mm vs 81 mm — lower is better
- ✓
Max magnification
0.36 × vs 0.25 × — higher is better
Reasons to choose the 70-200mm F2.8 DG DN OS Sports
- ✓
Special elements
Adds Aspherical
- ✓
OIS effectiveness
5 stops vs 0 stops — higher is better
- ✓
Optical stabilization
Only 70-200mm F2.8 DG DN OS Sports supports it
- ✓
Weather sealing
Only 70-200mm F2.8 DG DN OS Sports supports it
- ✓
Control ring
Only 70-200mm F2.8 DG DN OS Sports supports it
- ✓
Custom function button
Only 70-200mm F2.8 DG DN OS Sports supports it
Shared specifications
Max aperture (Wide)
Both f/2.8
Max aperture (Tele)
Both f/2.8
Internal focus
Both support internal focus
Pros & cons at a glance
Editorially curated highlights and trade-offs.
18-50mm F2.8 DC DN Contemporary
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Lightweight design easy to carry all day
- ✓Native Fujifilm X mount compatibility
Cons
- –Third-party or older alternatives may offer better value
70-200mm F2.8 DG DN OS Sports
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Relatively heavy for extended handheld use
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the 18-50mm F2.8 DC DN Contemporary and 70-200mm F2.8 DG DN OS Sports at major authorized retailers.
Sigma 18-50mm F2.8 DC DN Contemporary
Sigma 70-200mm F2.8 DG DN OS Sports
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.