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
Sigma
50mm F1.2 DG DN Art
Sony E Mount
50mm F1.2 DG DN Art — 50mm f/1.2 for Sony E, a popular choice in the sigma lineup.
$1,499
Launch priceReleased May 2021
28-45mm F1.8 DG DN Art is 3.3 years newer.
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Wins
28-45mm F1.8 DG DN Art
Wins
50mm F1.2 DG DN Art
2 categories tied
Which would you choose?
TL;DR — Key differences
- A28-45mm F1.8 DG DN Art has higher Max magnification (0.25 × vs 0.15 ×)
- B50mm F1.2 DG DN Art has lower Max aperture (Wide) (f/1.2 vs f/1.8)
- B50mm F1.2 DG DN Art has lower Max aperture (Tele) (f/1.2 vs f/1.8)
- A28-45mm F1.8 DG DN Art has lower Length (153.4 mm vs 182 mm)
- B50mm F1.2 DG DN Art has lower Diameter (81 mm vs 88.9 mm)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to share28-45mm F1.8 DG DN Art
⌀89 × 153 mm
950 g (2.09 lb / 33.51 oz)
Credit card
85.6 × 54 mm
for scale
50mm F1.2 DG DN Art
⌀81 × 182 mm
946 g (2.09 lb / 33.37 oz)
28-45mm F1.8 DG DN Art is 29mm shorter and 8mm wider than 50mm F1.2 DG DN Art.
28-45mm F1.8 DG DN Art is 4 g heavier than 50mm F1.2 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 28-45mm F1.8 DG DN Art
- ✓
Special elements
Adds 2 SLD, 3 Aspherical
- ✓
Length
153.4 mm vs 182 mm — lower is better
- ✓
Max magnification
0.25 × vs 0.15 × — higher is better
Reasons to choose the 50mm F1.2 DG DN Art
- ✓
Special elements
Adds Aspherical, ED
- ✓
Max aperture (Wide)
f/1.2 vs f/1.8 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/1.8 — lower is better
- ✓
Diameter
81 mm vs 88.9 mm — lower is better
- ✓
Weight
946 g vs 950 g — lower is better
Shared specifications
Min focus distance
Both 30 cm
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Custom function button
Both support custom function button
Pros & cons at a glance
Editorially curated highlights and trade-offs.
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
50mm F1.2 DG DN Art
Pros
- ✓Bright f/1.2 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓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 28-45mm F1.8 DG DN Art and 50mm F1.2 DG DN Art at major authorized retailers.
Sigma 28-45mm F1.8 DG DN Art
Sigma 50mm F1.2 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.