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Canon

RF 28-70mm F2L USM

Canon RF Mount

The world's first f/2 standard zoom — unmatched low-light performance and shallow depth of field across the range.

$2,999

Launch price

Released Oct 2018

vs

Canon

RF 35mm F1.2 L USM

Canon RF Mount

RF 35mm F1.2 L USM — 35mm f/1.2 for Canon RF, a popular choice in the canon lineup.

$2,999

Launch price

Released Dec 2018

RF 35mm F1.2 L USM is 2 months newer.

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Wins

2categories

RF 28-70mm F2L USM

Sports & Action

Wins

5categories

RF 35mm F1.2 L USM

PortraitSports & Action

1 categories tied

TL;DR — Key differences

RF 28-70mm F2L USM wins 1 categories·RF 35mm F1.2 L USM wins 4 categories
  • BRF 35mm F1.2 L USM has lower Max aperture (Wide) (f/1.2 vs f/2)
  • BRF 35mm F1.2 L USM has lower Max aperture (Tele) (f/1.2 vs f/2)
  • BRF 35mm F1.2 L USM has lower Weight (950 g vs 1430 g)
  • ARF 28-70mm F2L USM has lower Min focus distance (39 cm vs 50 cm)
  • BRF 35mm F1.2 L USM has lower Length (111.5 mm vs 140 mm)

Key specs at a glance

RF 28-70mm F2L USMRF 35mm F1.2 L USM
Focal Length28-70 mm35 mm
Max Aperturef/2f/1.2
MountCanon RFCanon RF
CoverageFull FrameFull Frame
StabilizationNoNo
Weight1430 g950 g
Min Focus39 cm50 cm
Filter Size95 mm82 mm

Size and weight, to scale

RF 28-70mm F2L USM

104 × 140 mm

1430 g (3.15 lb / 50.44 oz)

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

Credit card

85.6 × 54 mm

for scale

RF 35mm F1.2 L USM

89 × 112 mm

950 g (2.09 lb / 33.51 oz)

RF 28-70mm F2L USM is 29mm longer and 15mm wider than RF 35mm F1.2 L USM.

RF 28-70mm F2L USM is 480 g heavier than RF 35mm F1.2 L USM.

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 28-70mm F2L USMRF 35mm F1.2 L USM
Portrait
4.5Fair
7.0Good
Sports & Action
6.5Good
6.5Good
Video & Hybrid
5.0Fair
4.5Fair
Landscape
4.0Fair
4.0Fair
Travel
2.0Limited
2.0Limited
Wildlife
3.0Limited
3.0Limited
Macro & Close-up
0.0Limited
0.0Limited

Why pick one over the other

Reasons to choose the RF 28-70mm F2L USM

  • Special elements

    Adds 1 Super UD, 2 UD, 1 Aspherical

  • Min focus distance

    39 cm vs 50 cm — lower is better

  • Max magnification

    0.21 × vs 0.17 × — higher is better

Reasons to choose the RF 35mm F1.2 L USM

  • Special elements

    Adds 3 Aspherical, 1 UD

  • Custom function button

    Only RF 35mm F1.2 L USM supports it

  • Max aperture (Wide)

    f/1.2 vs f/2 — lower is better

  • Max aperture (Tele)

    f/1.2 vs f/2 — lower is better

  • Weight

    950 g vs 1430 g — lower is better

  • Length

    111.5 mm vs 140 mm — lower is better

  • Diameter

    89 mm vs 104 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 28-70mm F2L USM

Pros

  • Constant f/2 aperture — unique among standard zooms
  • Exceptional low-light and indoor event performance
  • Outstanding build quality and weather sealing
  • Fast Ring USM autofocus

Cons

  • Extremely heavy (1430g) — not for casual carry
  • Highest price in the standard zoom category
  • No optical image stabilization

RF 35mm F1.2 L USM

Pros

  • Bright f/1.2 aperture for low light and subject separation
  • Prime design typically delivers strong sharpness and lighter weight
  • Weather-sealed construction for outdoor shooting

Cons

  • Premium price point
  • Relatively heavy for extended handheld use

Decided which one is right for you?

Compare live prices for the RF 28-70mm F2L USM and RF 35mm F1.2 L USM at major authorized retailers.

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Full specifications

= category winner

RF 28-70mm F2L USM
RF 35mm F1.2 L USM
Focal length (Min)
28 mm
35 mm
Focal length (Max)
70 mm
35 mm
Max aperture (Wide)
f/2
f/1.2+1.5 stops wider
Max aperture (Tele)
f/2
f/1.2+1.5 stops wider
Elements
19
13
Groups
13
9
Special elements
1 Super UD, 2 UD, 1 Aspherical
3 Aspherical, 1 UD
RF 28-70mm F2L USM
RF 35mm F1.2 L USM
Min focus distance
39 cm−11 cm less
50 cm
Max magnification
0.21 ×+24%
0.17 ×
Autofocus motor
Ring USM
Dual Nano USM
Internal focus
Yes
Yes
RF 28-70mm F2L USM
RF 35mm F1.2 L USM
Optical stabilization
No
No
OIS effectiveness
0 stops
0 stops
RF 28-70mm F2L USM
RF 35mm F1.2 L USM
Weight
1430 g
950 g−480 g less
Length
140 mm
111.5 mm−29 mm less
Diameter
104 mm
89 mm−15 mm less
Filter thread size
95 mm
82 mm
Weather sealing
Yes
Yes
Diaphragm blades
9
9
RF 28-70mm F2L USM
RF 35mm F1.2 L USM
Lens mount
Canon RF
Canon RF
Format coverage
Full Frame
Full Frame

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