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
28-45mm F1.8 DG DN Art
Nikon Z Mount
28-45mm F1.8 DG DN Art — 28–45mm f/1.8 for Nikon Z, a popular choice in the sigma lineup.
$1,499
Launch priceReleased Sep 2024
28-45mm F1.8 DG DN Art is 2.9 years newer.
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Wins
18-50mm F2.8 DC DN Contemporary
Wins
28-45mm F1.8 DG DN Art
2 categories tied
Which would you choose?
TL;DR — Key differences
- A18-50mm F2.8 DC DN Contemporary has lower Weight (290 g vs 950 g)
- A18-50mm F2.8 DC DN Contemporary has lower Length (91 mm vs 153.4 mm)
- B28-45mm F1.8 DG DN Art has lower Max aperture (Wide) (f/1.8 vs f/2.8)
- B28-45mm F1.8 DG DN Art has lower Max aperture (Tele) (f/1.8 vs f/2.8)
- A18-50mm F2.8 DC DN Contemporary has lower Diameter (65 mm vs 88.9 mm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to share18-50mm F2.8 DC DN Contemporary
⌀65 × 91 mm
290 g (0.64 lb / 10.23 oz)
Credit card
85.6 × 54 mm
for scale
28-45mm F1.8 DG DN Art
⌀89 × 153 mm
950 g (2.09 lb / 33.51 oz)
18-50mm F2.8 DC DN Contemporary is 62mm shorter and 24mm narrower than 28-45mm F1.8 DG DN Art.
18-50mm F2.8 DC DN Contemporary is 660 g lighter than 28-45mm F1.8 DG DN Art.
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 Aspherical
- ✓
Weight
290 g vs 950 g — lower is better
- ✓
Length
91 mm vs 153.4 mm — lower is better
- ✓
Diameter
65 mm vs 88.9 mm — lower is better
Reasons to choose the 28-45mm F1.8 DG DN Art
- ✓
Special elements
Adds 2 SLD, 3 Aspherical
- ✓
Weather sealing
Only 28-45mm F1.8 DG DN Art supports it
- ✓
Control ring
Only 28-45mm F1.8 DG DN Art supports it
- ✓
Custom function button
Only 28-45mm F1.8 DG DN Art supports it
- ✓
Max aperture (Wide)
f/1.8 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/1.8 vs f/2.8 — lower is better
- ✓
Min focus distance
30 cm vs 38 cm — lower is better
Shared specifications
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
28-45mm F1.8 DG DN Art
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Nikon Z mount compatibility
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 28-45mm F1.8 DG DN Art at major authorized retailers.
Sigma 18-50mm F2.8 DC DN Contemporary
Sigma 28-45mm F1.8 DG DN Art
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.