Sigma
18-50mm F2.8 DC DN Contemporary
Sony E Mount
18-50mm F2.8 DC DN Contemporary — 18–50mm f/2.8 for Sony E, a popular choice in the sigma lineup.
$549
Launch priceReleased Oct 2021
Sigma
24-70mm F2.8 DG DN Art
Leica L Mount
24-70mm F2.8 DG DN Art — 24–70mm f/2.8 for Leica L, a popular choice in the sigma lineup.
$1,099
Launch priceReleased Nov 2019
18-50mm F2.8 DC DN Contemporary is 1.9 years newer.
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Wins
18-50mm F2.8 DC DN Contemporary
Wins
24-70mm F2.8 DG DN Art
5 categories tied
TL;DR — Key differences
- A18-50mm F2.8 DC DN Contemporary has lower Weight (290 g vs 835 g)
- A18-50mm F2.8 DC DN Contemporary has lower Length (91 mm vs 167 mm)
- A18-50mm F2.8 DC DN Contemporary has lower Diameter (65 mm vs 70 mm)
Key specs at a glance
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
- ✓
Weight
290 g vs 835 g — lower is better
- ✓
Length
91 mm vs 167 mm — lower is better
- ✓
Diameter
65 mm vs 70 mm — lower is better
Reasons to choose the 24-70mm F2.8 DG DN Art
- ✓
Weather sealing
Only 24-70mm F2.8 DG DN Art supports it
- ✓
Control ring
Only 24-70mm F2.8 DG DN Art supports it
Shared specifications
Max aperture (Wide)
Both f/2.8
Max aperture (Tele)
Both f/2.8
Min focus distance
Both 38 cm
Max magnification
Both 0.25 ×
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 Sony E mount compatibility
Cons
- –Third-party or older alternatives may offer better value
24-70mm F2.8 DG DN Art
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Leica L mount compatibility
Cons
- –No optical stabilization — relies on body IBIS
- –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 24-70mm F2.8 DG DN Art at major authorized retailers.
Sigma 18-50mm F2.8 DC DN Contemporary
Sigma 24-70mm F2.8 DG DN Art
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.