Sigma
20mm F1.4 DG DN Art
Sony E Mount
20mm F1.4 DG DN Art — 20mm f/1.4 for Sony E, a popular choice in the sigma lineup.
$899
Launch priceReleased Aug 2022
Tamron
28-75mm F2.8 Di III VXD G2
Sony E Mount
An incredibly popular third-party zoom updated with vastly improved sharpness and autofocus.
$899
Launch priceReleased Aug 2021
20mm F1.4 DG DN Art is 1.1 years newer.
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Wins
20mm F1.4 DG DN Art
Wins
28-75mm F2.8 Di III VXD G2
1 categories tied
TL;DR — Key differences
- B28-75mm F2.8 Di III VXD G2 has higher Max magnification (0.37 × vs 0.15 ×)
- A20mm F1.4 DG DN Art has lower Max aperture (Wide) (f/1.4 vs f/2.8)
- A20mm F1.4 DG DN Art has lower Max aperture (Tele) (f/1.4 vs f/2.8)
- B28-75mm F2.8 Di III VXD G2 has lower Min focus distance (18 cm vs 30 cm)
- A20mm F1.4 DG DN Art has lower Weight (335 g vs 540 g)
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 20mm F1.4 DG DN Art
- ✓
Special elements
Adds Aspherical, ED
- ✓
Max aperture (Wide)
f/1.4 vs f/2.8 — lower is better
- ✓
Max aperture (Tele)
f/1.4 vs f/2.8 — lower is better
- ✓
Weight
335 g vs 540 g — lower is better
- ✓
Length
97 mm vs 118 mm — lower is better
Reasons to choose the 28-75mm F2.8 Di III VXD G2
- ✓
Special elements
Adds 2 LD, 2 GM
- ✓
Custom function button
Only 28-75mm F2.8 Di III VXD G2 supports it
- ✓
Min focus distance
18 cm vs 30 cm — lower is better
- ✓
Max magnification
0.37 × vs 0.15 × — higher is better
- ✓
Diameter
76 mm vs 86 mm — lower is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
20mm F1.4 DG DN Art
Pros
- ✓Bright f/1.4 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
- ✓Lightweight design easy to carry all day
Cons
- –Third-party or older alternatives may offer better value
28-75mm F2.8 Di III VXD G2
Pros
- ✓Superb value for money compared to first-party options
- ✓Excellent sharpness throughout the range, even at f/2.8
- ✓Very lightweight and compact (only 540g)
- ✓Fast VXD linear motor focus drive
- ✓Customizable lens functions via Tamron Lens Utility software
Cons
- –Starts at 28mm instead of the wider 24mm standard
- –Slightly weaker corner sharpness at 75mm wide open
- –Weather sealing is basic compared to Sony GM lenses
Decided which one is right for you?
Compare live prices for the 20mm F1.4 DG DN Art and 28-75mm F2.8 Di III VXD G2 at major authorized retailers.
Sigma 20mm F1.4 DG DN Art
Tamron 28-75mm F2.8 Di III VXD G2
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.