Samyang
AF 135mm F1.8 FE
Sony E Mount
AF 135mm F1.8 FE — 135mm f/1.8 for Sony E, a popular choice in the samyang lineup.
$999
Launch priceReleased Sep 2020
Sony
FE 50mm F1.4 GM
Sony E Mount
FE 50mm F1.4 GM — 50mm f/1.4 for Sony E, a popular choice in the sony lineup.
$1,799
Launch priceReleased Mar 2025
FE 50mm F1.4 GM is 4.4 years newer.
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Wins
AF 135mm F1.8 FE
Wins
FE 50mm F1.4 GM
1 categories tied
Which would you choose?
TL;DR — Key differences
- BFE 50mm F1.4 GM has lower Min focus distance (30 cm vs 90 cm)
- BFE 50mm F1.4 GM has lower Weight (580 g vs 822 g)
- BFE 50mm F1.4 GM has lower Max aperture (Wide) (f/1.4 vs f/1.8)
- BFE 50mm F1.4 GM has lower Max aperture (Tele) (f/1.4 vs f/1.8)
- AAF 135mm F1.8 FE has higher Max magnification (0.17 × vs 0.15 ×)
Key specs at a glance
Size and weight, to scale
📸 Snap this lens size diff to shareAF 135mm F1.8 FE
⌀82 × 130 mm
822 g (1.81 lb / 29.00 oz)
Credit card
85.6 × 54 mm
for scale
FE 50mm F1.4 GM
⌀81 × 131 mm
580 g (1.28 lb / 20.46 oz)
AF 135mm F1.8 FE is 1mm shorter and 1mm wider than FE 50mm F1.4 GM.
AF 135mm F1.8 FE is 242 g heavier than FE 50mm F1.4 GM.
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 FE
- ✓
Special elements
Adds 2 Aspherical, 2 HR, 1 ED
- ✓
Max magnification
0.17 × vs 0.15 × — higher is better
- ✓
Length
130.1 mm vs 131 mm — lower is better
Reasons to choose the FE 50mm F1.4 GM
- ✓
Special elements
Adds Aspherical, ED
- ✓
Min focus distance
30 cm vs 90 cm — lower is better
- ✓
Custom function button
Only FE 50mm F1.4 GM supports it
- ✓
Weight
580 g vs 822 g — lower is better
- ✓
Max aperture (Wide)
f/1.4 vs f/1.8 — lower is better
- ✓
Max aperture (Tele)
f/1.4 vs f/1.8 — lower is better
- ✓
Diameter
81 mm vs 82 mm — lower is better
Shared specifications
Internal focus
Both support internal focus
Weather sealing
Both support weather sealing
Control ring
Both support control ring
Pros & cons at a glance
Editorially curated highlights and trade-offs.
AF 135mm F1.8 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
FE 50mm F1.4 GM
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
- –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 FE and FE 50mm F1.4 GM at major authorized retailers.
Samyang AF 135mm F1.8 FE
Sony FE 50mm F1.4 GM
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.