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 F1.2 GM
Sony E Mount
Exquisite resolution and dreamy bokeh combine in a masterful f/1.2 prime.
$1,999
Launch priceReleased Mar 2021
FE 50mm F1.2 GM is 6 months newer.
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Wins
AF 135mm F1.8 FE
Wins
FE 50mm F1.2 GM
2 categories tied
Which would you choose?
TL;DR — Key differences
- BFE 50mm F1.2 GM has lower Min focus distance (40 cm vs 90 cm)
- 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)
- BFE 50mm F1.2 GM has lower Length (108 mm vs 130.1 mm)
- AAF 135mm F1.8 FE has lower Diameter (82 mm vs 87 mm)
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 F1.2 GM
⌀87 × 108 mm
778 g (1.72 lb / 27.44 oz)
AF 135mm F1.8 FE is 22mm longer and 5mm narrower than FE 50mm F1.2 GM.
AF 135mm F1.8 FE is 44 g heavier than FE 50mm F1.2 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
- ✓
Diameter
82 mm vs 87 mm — lower is better
Reasons to choose the FE 50mm F1.2 GM
- ✓
Special elements
Adds 3 XA (extreme aspherical)
- ✓
Min focus distance
40 cm vs 90 cm — lower is better
- ✓
Custom function button
Only FE 50mm F1.2 GM supports it
- ✓
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
- ✓
Length
108 mm vs 130.1 mm — lower is better
- ✓
Weight
778 g vs 822 g — lower is better
Shared specifications
Max magnification
Both 0.17 ×
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 F1.2 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 AF 135mm F1.8 FE and FE 50mm F1.2 GM at major authorized retailers.
Samyang AF 135mm F1.8 FE
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 June 2026.