Viltrox
AF 135mm F1.8 LAB FE
Sony E Mount
AF 135mm F1.8 LAB FE — 135mm f/1.8 for Sony E, a popular choice in the viltrox lineup.
$999
Launch priceReleased Sep 2024
Viltrox
AF 56mm F1.2 Pro XF
Fujifilm X Mount
AF 56mm F1.2 Pro XF — 56mm f/1.2 for Fujifilm X, a popular choice in the viltrox lineup.
$729
Launch priceReleased May 2023
AF 135mm F1.8 LAB FE is 1.3 years newer.
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Wins
AF 135mm F1.8 LAB FE
Wins
AF 56mm F1.2 Pro XF
1 categories tied
Which would you choose?
TL;DR — Key differences
- AAF 135mm F1.8 LAB FE has higher Max magnification (0.25 × vs 0.1 ×)
- BAF 56mm F1.2 Pro XF has lower Weight (595 g vs 1235 g)
- BAF 56mm F1.2 Pro XF has lower Max aperture (Wide) (f/1.2 vs f/1.8)
- BAF 56mm F1.2 Pro XF has lower Max aperture (Tele) (f/1.2 vs f/1.8)
- BAF 56mm F1.2 Pro XF has lower Length (99 mm vs 145.7 mm)
Key specs at a glance
Size and weight, to scale
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AF 135mm F1.8 LAB FE
⌀93 × 146 mm
1235 g (2.72 lb / 43.56 oz)
Credit card
85.6 × 54 mm
for scale
AF 56mm F1.2 Pro XF
⌀76 × 99 mm
595 g (1.31 lb / 20.99 oz)
AF 135mm F1.8 LAB FE is 47mm longer and 17mm wider than AF 56mm F1.2 Pro XF.
AF 135mm F1.8 LAB FE is 640 g heavier than AF 56mm F1.2 Pro XF.
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 AF 135mm F1.8 LAB FE
- ✓
Control ring
Only AF 135mm F1.8 LAB FE supports it
- ✓
Special elements
Adds 2 Aspherical
- ✓
Max magnification
0.25 × vs 0.1 × — higher is better
Reasons to choose the AF 56mm F1.2 Pro XF
- ✓
Weight
595 g vs 1235 g — 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
- ✓
Special elements
Adds 1 Aspherical
- ✓
Length
99 mm vs 145.7 mm — lower is better
- ✓
Min focus distance
50 cm vs 72 cm — lower is better
- ✓
Diameter
76 mm vs 93 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.
AF 135mm F1.8 LAB FE
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Sony E mount compatibility
Cons
- –Third-party or older alternatives may offer better value
AF 56mm F1.2 Pro XF
Pros
- ✓Bright f/1.2 aperture for low light and subject separation
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Native Fujifilm X mount compatibility
Cons
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the AF 135mm F1.8 LAB FE and AF 56mm F1.2 Pro XF at major authorized retailers.
Viltrox AF 135mm F1.8 LAB FE
Viltrox AF 56mm F1.2 Pro XF
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.