Canon
RF 85mm F1.2L USM
Canon RF Mount
The definitive portrait prime for RF — f/1.2 aperture delivers unmatched subject separation and dreamy backgrounds.
$2,699
Launch priceReleased Feb 2019
Sony
FE 135mm F1.8 GM
Sony E Mount
FE 135mm F1.8 GM — 135mm f/1.8 for Sony E, a popular choice in the sony lineup.
$1,899
Launch priceReleased Feb 2019
Released within a month of each other.
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Wins
RF 85mm F1.2L USM
Wins
FE 135mm F1.8 GM
1 categories tied
TL;DR — Key differences
- BFE 135mm F1.8 GM has lower Min focus distance (30 cm vs 85 cm)
- ARF 85mm F1.2L USM has lower Length (117 mm vs 183 mm)
- ARF 85mm F1.2L USM has lower Max aperture (Wide) (f/1.2 vs f/1.8)
- ARF 85mm F1.2L USM has lower Max aperture (Tele) (f/1.2 vs f/1.8)
- BFE 135mm F1.8 GM has lower Diameter (81 mm vs 103 mm)
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 RF 85mm F1.2L USM
- ✓
Special elements
Adds 1 UD, 1 Aspherical
- ✓
Length
117 mm vs 183 mm — 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
Reasons to choose the FE 135mm F1.8 GM
- ✓
Special elements
Adds Aspherical
- ✓
Min focus distance
30 cm vs 85 cm — lower is better
- ✓
Custom function button
Only FE 135mm F1.8 GM supports it
- ✓
Diameter
81 mm vs 103 mm — lower is better
- ✓
Weight
950 g vs 1195 g — lower is better
- ✓
Max magnification
0.15 × vs 0.12 × — higher 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.
RF 85mm F1.2L USM
Pros
- ✓Class-leading portrait focal length with f/1.2 aperture
- ✓Exceptional subject isolation and bokeh quality
- ✓Excellent eye-AF tracking on Canon R bodies
- ✓Premium L-series weather sealing
Cons
- –Very heavy (1195g) — tiring for handheld sessions
- –Expensive flagship pricing
- –No built-in stabilization
FE 135mm F1.8 GM
Pros
- ✓Prime design typically delivers strong sharpness and lighter weight
- ✓Weather-sealed construction for outdoor shooting
- ✓Native Sony E mount compatibility
Cons
- –Relatively heavy for extended handheld use
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the RF 85mm F1.2L USM and FE 135mm F1.8 GM at major authorized retailers.
Canon RF 85mm F1.2L USM
Sony FE 135mm F1.8 GM
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Full specifications
✓ = category winner
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.