Sigma
28-45mm F1.8 DG DN Art
Sony E Mount
28-45mm F1.8 DG DN Art — 28–45mm f/1.8 for Sony E, a popular choice in the sigma lineup.
$1,499
Launch priceReleased Jun 2024
Sony
FE 50mm F1.2 GM
Sony E Mount
Exquisite resolution and dreamy bokeh combine in a masterful f/1.2 prime.
$1,999
Launch priceReleased Mar 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
FE 50mm F1.2 GM
1 categories tied
TL;DR — Key differences
- BFE 50mm F1.2 GM has lower Length (108 mm vs 183 mm)
- BFE 50mm F1.2 GM has lower Max aperture (Wide) (f/1.2 vs f/1.8)
- BFE 50mm F1.2 GM has lower Max aperture (Tele) (f/1.2 vs f/1.8)
- A28-45mm F1.8 DG DN Art has higher Max magnification (0.25 × vs 0.17 ×)
- A28-45mm F1.8 DG DN Art has lower Diameter (70 mm vs 87 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 28-45mm F1.8 DG DN Art
- ✓
Special elements
Adds Aspherical
- ✓
Diameter
70 mm vs 87 mm — lower is better
- ✓
Max magnification
0.25 × vs 0.17 × — higher is better
- ✓
Min focus distance
38 cm vs 40 cm — lower is better
Reasons to choose the FE 50mm F1.2 GM
- ✓
Special elements
Adds 3 XA (extreme aspherical)
- ✓
Length
108 mm vs 183 mm — lower is better
- ✓
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
- ✓
Weight
778 g vs 950 g — lower is better
Shared specifications
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 Sony E mount compatibility
Cons
- –Relatively heavy for extended handheld use
- –Third-party or older alternatives may offer better value
FE 50mm F1.2 GM
Pros
- ✓Outstanding sharpness wide open at f/1.2
- ✓Stunningly smooth, circular bokeh with 11 aperture blades
- ✓Extremely quiet and fast autofocus tracking
- ✓Manageable size and weight for an f/1.2 lens
Cons
- –Expensive investment for a single focal length
- –Heavy compared to standard f/1.8 options
- –Some visible vignetting wide open
Decided which one is right for you?
Compare live prices for the 28-45mm F1.8 DG DN Art and FE 50mm F1.2 GM at major authorized retailers.
Sigma 28-45mm F1.8 DG DN Art
Sony FE 50mm F1.2 GM
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.