Canon
RF 50mm F1.2L USM
Canon RF Mount
Canon's flagship 50mm f/1.2 prime — extraordinary resolution and creamy bokeh for portraits and low light.
$2,299
Launch priceReleased Dec 2018
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 2.3 years newer.
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Wins
RF 50mm F1.2L USM
Wins
FE 50mm F1.2 GM
5 categories tied
TL;DR — Key differences
- BFE 50mm F1.2 GM has lower Weight (778 g vs 950 g)
- ARF 50mm F1.2L USM has higher Max magnification (0.19 × vs 0.17 ×)
- BFE 50mm F1.2 GM has lower Diameter (87 mm vs 89 mm)
Key specs at a glance
Use-case scoring
Which one for what?
Algorithmic scores from verified specs · 10 = best in class
The verdict
While both lenses offer an ultra-fast f/1.2 aperture, the $300 price gap and the significant 172g weight disparity represent the primary trade-off between these two professional full-frame prime optics.
Choose the Canon RF 50mm F1.2L USM if you require superior close-up capabilities for detailed subjects, as it offers a higher 0.19x maximum magnification and utilizes a Ring USM focus motor.
Choose the Sony FE 50mm F1.2 GM if you prioritize a lighter 778g build and more refined out-of-focus highlights, supported by its 11-blade aperture, 3 XA extreme aspherical elements, and advanced XD Linear focus motors.
Why pick one over the other
Reasons to choose the RF 50mm F1.2L USM
- ✓
Special elements
Adds 1 UD, 1 Aspherical
- ✓
Max magnification
0.19 × vs 0.17 × — higher is better
Reasons to choose the FE 50mm F1.2 GM
- ✓
Special elements
Adds 3 XA (extreme aspherical)
- ✓
Custom function button
Only FE 50mm F1.2 GM supports it
- ✓
Weight
778 g vs 950 g — lower is better
- ✓
Diameter
87 mm vs 89 mm — lower is better
Shared specifications
Max aperture (Wide)
Both f/1.2
Max aperture (Tele)
Both f/1.2
Min focus distance
Both 40 cm
Internal focus
Both support internal focus
Length
Both 108 mm
Weather sealing
Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
RF 50mm F1.2L USM
Pros
- ✓Stunning sharpness even wide open at f/1.2
- ✓Beautiful, smooth bokeh with 9 rounded aperture blades
- ✓Fast and accurate Dual Pixel AF with Ring USM
- ✓Weather-sealed L-series construction
Cons
- –Heavy for a 50mm prime (950g)
- –Premium price for a single focal length
- –No optical image stabilization
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 RF 50mm F1.2L USM and FE 50mm F1.2 GM at major authorized retailers.
Canon RF 50mm F1.2L USM
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 May 2026.