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Canon

RF 14-35mm F4L IS USM

Canon RF Mount

A compact, lightweight ultra-wide zoom with 5.5-stop IS — ideal for vloggers, travelers, and landscape photographers.

$1,699

Launch price

Released Aug 2022

vs
FE 50mm F1.2 GM

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 price

Released Mar 2021

RF 14-35mm F4L IS USM is 1.4 years newer.

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Wins

5categories

RF 14-35mm F4L IS USM

★ Video & Hybrid★ Landscape

Wins

3categories

FE 50mm F1.2 GM

★ Portrait★ Sports & Action

Which would you choose?

TL;DR — Key differences

RF 14-35mm F4L IS USM wins 3 categories·FE 50mm F1.2 GM wins 2 categories
  • ARF 14-35mm F4L IS USM has higher OIS effectiveness (5.5 stops vs 0 stops)
  • BFE 50mm F1.2 GM has lower Max aperture (Wide) (f/1.2 vs f/4)
  • BFE 50mm F1.2 GM has lower Max aperture (Tele) (f/1.2 vs f/4)
  • ARF 14-35mm F4L IS USM has higher Max magnification (0.38 × vs 0.17 ×)
  • ARF 14-35mm F4L IS USM has lower Min focus distance (20 cm vs 40 cm)

Key specs at a glance

RF 14-35mm F4L IS USMFE 50mm F1.2 GM
Focal Length14-35 mm50 mm
Max Aperturef/4f/1.2
MountCanon RFSony E
CoverageFull FrameFull-Frame
Stabilization5.5 stopsNo
Weight540 g778 g
Min Focus20 cm40 cm
Filter Size77 mm72 mm

Size and weight, to scale

RF 14-35mm F4L IS USM

⌀84 × 112 mm

540 g (1.19 lb / 19.05 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

FE 50mm F1.2 GM shown to scale

FE 50mm F1.2 GM

⌀87 × 108 mm

778 g (1.72 lb / 27.44 oz)

RF 14-35mm F4L IS USM is 4mm longer and 3mm narrower than FE 50mm F1.2 GM.

RF 14-35mm F4L IS USM is 238 g lighter 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

Use caseRF 14-35mm F4L IS USMFE 50mm F1.2 GM
Portrait
2.5Limited
9.0Excellent
Sports & Action
6.5Good
6.5Good
Video & Hybrid
9.0Excellent
4.5Fair
Landscape
8.0Excellent
3.0Limited
Travel
3.5Limited
2.0Limited
Wildlife
5.5Fair
3.0Limited
Macro & Close-up
6.0Good
0.0Limited

Why pick one over the other

Reasons to choose the RF 14-35mm F4L IS USM

  • ✓

    Special elements

    Adds 4 Aspherical, 2 UD

  • ✓

    OIS effectiveness

    5.5 stops vs 0 stops — higher is better

  • ✓

    Min focus distance

    20 cm vs 40 cm — lower is better

  • ✓

    Optical stabilization

    Only RF 14-35mm F4L IS USM supports it

  • ✓

    Weight

    540 g vs 778 g — lower is better

  • ✓

    Max magnification

    0.38 × vs 0.17 × — higher is better

  • ✓

    Diameter

    84 mm vs 87 mm — lower is better

Reasons to choose the FE 50mm F1.2 GM

  • ✓

    Special elements

    Adds 3 XA (extreme aspherical)

  • ✓

    Max aperture (Wide)

    f/1.2 vs f/4 — lower is better

  • ✓

    Max aperture (Tele)

    f/1.2 vs f/4 — lower is better

  • ✓

    Custom function button

    Only FE 50mm F1.2 GM supports it

  • ✓

    Length

    108 mm vs 112 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.

RF 14-35mm F4L IS USM

Pros

  • ✓Extremely compact for an ultra-wide zoom (540g)
  • ✓14mm ultra-wide perspective for dramatic scenes
  • ✓5.5-stop optical image stabilization
  • ✓Center sharpness excellent across range

Cons

  • –f/4 maximum aperture limits low-light use
  • –More expensive than EF 16-35mm f/4 IS
  • –Corner sharpness falls off at 14mm

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 14-35mm F4L IS USM and FE 50mm F1.2 GM at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

✓ = category winner

RF 14-35mm F4L IS USM
FE 50mm F1.2 GM
Focal length (Min)
14 mm
50 mm
Focal length (Max)
35 mm
50 mm
Max aperture (Wide)
f/4
f/1.2✓+3.5 stops wider
Max aperture (Tele)
f/4
f/1.2✓+3.5 stops wider
Elements
16
14
Groups
12
10
Special elements
4 Aspherical, 2 UD
3 XA (extreme aspherical)
RF 14-35mm F4L IS USM
FE 50mm F1.2 GM
Min focus distance
20 cm✓−20 cm less
40 cm
Max magnification
0.38 ×✓2.2× more
0.17 ×
Autofocus motor
Nano USM
XD Linear Motors
Internal focus
Yes
Yes
RF 14-35mm F4L IS USM
FE 50mm F1.2 GM
Optical stabilization
Yes
No
OIS effectiveness
5.5 stops✓
0 stops
RF 14-35mm F4L IS USM
FE 50mm F1.2 GM
Weight
540 g✓−238 g less
778 g
Length
112 mm
108 mm✓−4 mm less
Diameter
84 mm✓−3 mm less
87 mm
Filter thread size
77 mm
72 mm
Weather sealing
Yes
Yes
Diaphragm blades
9
11
RF 14-35mm F4L IS USM
FE 50mm F1.2 GM
Lens mount
Canon RF
Sony E
Format coverage
Full Frame
Full-Frame

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed October 2026.