Leica
Summilux-SL 50mm f/1.4 ASPH.
Leica L Mount
Summilux-SL 50mm f/1.4 ASPH. — 50mm f/1.4 for Leica L, a popular choice in the leica lineup.
$5,195
Launch priceReleased Sep 2015
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
28-75mm F2.8 Di III VXD G2 is 5.8 years newer.
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Wins
Summilux-SL 50mm f/1.4 ASPH.
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 lower Min focus distance (18 cm vs 60 cm)
- B28-75mm F2.8 Di III VXD G2 has higher Max magnification (0.37 × vs 0.14 ×)
- ASummilux-SL 50mm f/1.4 ASPH. has lower Max aperture (Wide) (f/1.4 vs f/2.8)
- ASummilux-SL 50mm f/1.4 ASPH. has lower Max aperture (Tele) (f/1.4 vs f/2.8)
- B28-75mm F2.8 Di III VXD G2 has lower Weight (540 g vs 680 g)
Key specs at a glance
Size and weight, to scale
Summilux-SL 50mm f/1.4 ASPH.
⌀88 × 108 mm
680 g (1.50 lb / 23.99 oz)
Credit card
85.6 × 54 mm
for scale
28-75mm F2.8 Di III VXD G2
⌀76 × 118 mm
540 g (1.19 lb / 19.05 oz)
Summilux-SL 50mm f/1.4 ASPH. is 10mm shorter and 12mm wider than 28-75mm F2.8 Di III VXD G2.
Summilux-SL 50mm f/1.4 ASPH. is 140 g heavier than 28-75mm F2.8 Di III VXD G2.
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 Summilux-SL 50mm f/1.4 ASPH.
- ✓
Special elements
Adds 2 Aspherical, 2 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
- ✓
Control ring
Only Summilux-SL 50mm f/1.4 ASPH. supports it
- ✓
Length
108 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
- ✓
Min focus distance
18 cm vs 60 cm — lower is better
- ✓
Max magnification
0.37 × vs 0.14 × — higher is better
- ✓
Weight
540 g vs 680 g — lower is better
- ✓
Diameter
76 mm vs 88 mm — lower is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Custom function button
Both support custom function button
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Summilux-SL 50mm f/1.4 ASPH.
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
Cons
- –Premium price point
- –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 Summilux-SL 50mm f/1.4 ASPH. and 28-75mm F2.8 Di III VXD G2 at major authorized retailers.
Leica Summilux-SL 50mm f/1.4 ASPH.
Tamron 28-75mm F2.8 Di III VXD G2
Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.
Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.