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Canon

RF 100mm F2.8L Macro IS USM

Canon RF Mount

Canon's first RF macro with 1.4x magnification and spherical aberration control for stunning close-up detail.

$1,399

Launch price

Released Apr 2021

vs

Canon

RF 24-105mm F4L IS USM

Canon RF Mount

The ultimate walk-around RF zoom — covers wide to portrait with 5-stop IS in a single versatile package.

$1,099

Launch price

Released Oct 2018

RF 100mm F2.8L Macro IS USM is 2.5 years newer.

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Wins

5categories

RF 100mm F2.8L Macro IS USM

Macro & Close-upSports & Action

Wins

2categories

RF 24-105mm F4L IS USM

Video & HybridLandscape

1 categories tied

TL;DR — Key differences

RF 100mm F2.8L Macro IS USM wins 4 categories·RF 24-105mm F4L IS USM wins 1 categories
  • ARF 100mm F2.8L Macro IS USM has higher Max magnification (1.4 × vs 0.24 ×)
  • ARF 100mm F2.8L Macro IS USM has lower Min focus distance (26 cm vs 45 cm)
  • ARF 100mm F2.8L Macro IS USM has lower Max aperture (Wide) (f/2.8 vs f/4)
  • ARF 100mm F2.8L Macro IS USM has lower Max aperture (Tele) (f/2.8 vs f/4)
  • BRF 24-105mm F4L IS USM has lower Length (107 mm vs 148 mm)

Key specs at a glance

RF 100mm F2.8L Macro IS USMRF 24-105mm F4L IS USM
Focal Length100 mm24-105 mm
Max Aperturef/2.8f/4
MountCanon RFCanon RF
CoverageFull FrameFull Frame
Stabilization5 stops5 stops
Weight730 g700 g
Min Focus26 cm45 cm
Filter Size67 mm77 mm

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseRF 100mm F2.8L Macro IS USMRF 24-105mm F4L IS USM
Portrait
4.5Fair
5.5Fair
Sports & Action
7.5Good
6.5Good
Video & Hybrid
7.0Good
9.0Excellent
Landscape
3.0Limited
7.0Good
Travel
2.0Limited
6.5Good
Wildlife
5.5Fair
5.5Fair
Macro & Close-up
9.0Excellent
1.5Limited

Why pick one over the other

Reasons to choose the RF 100mm F2.8L Macro IS USM

  • Max magnification

    1.4 × vs 0.24 × — higher is better

  • Min focus distance

    26 cm vs 45 cm — lower is better

  • Max aperture (Wide)

    f/2.8 vs f/4 — lower is better

  • Max aperture (Tele)

    f/2.8 vs f/4 — lower is better

  • Diameter

    82 mm vs 84 mm — lower is better

Reasons to choose the RF 24-105mm F4L IS USM

  • Special elements

    Adds 1 Aspherical

  • Length

    107 mm vs 148 mm — lower is better

  • Weight

    700 g vs 730 g — lower is better

Shared specifications

Internal focus

Both support internal focus

Optical stabilization

Both support optical stabilization

OIS effectiveness

Both 5 stops

Weather sealing

Both support weather sealing

Control ring

Both support control ring

Pros & cons at a glance

Editorially curated highlights and trade-offs.

RF 100mm F2.8L Macro IS USM

Pros

  • 1.4x maximum magnification (industry-leading for macro)
  • Spherical Aberration Control for adjustable bokeh
  • 5-stop Hybrid IS for handheld macro
  • Doubles as a sharp 100mm portrait lens

Cons

  • Complex SA control ring adds learning curve
  • Heavy for macro work (730g)
  • Premium macro pricing

RF 24-105mm F4L IS USM

Pros

  • Extremely versatile 24-105mm range for travel and events
  • 5-stop optical image stabilization
  • Constant f/4 aperture throughout zoom
  • Nano USM delivers fast, quiet autofocus

Cons

  • f/4 maximum aperture limits low-light capability
  • Heavier than f/2.8 alternatives (700g)
  • Corner sharpness softens at 105mm wide open

Decided which one is right for you?

Compare live prices for the RF 100mm F2.8L Macro IS USM and RF 24-105mm F4L IS USM at major authorized retailers.

Canon RF 100mm F2.8L Macro IS USM

Canon RF 24-105mm F4L IS USM

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Full specifications

= category winner

RF 100mm F2.8L Macro IS USM
RF 24-105mm F4L IS USM
Focal length (Min)
100 mm
24 mm
Focal length (Max)
100 mm
105 mm
Max aperture (Wide)
f/2.8+1 stop wider
f/4
Max aperture (Tele)
f/2.8+1 stop wider
f/4
Elements
17
18
Groups
12
14
Special elements
1 UD
1 UD, 1 Aspherical
RF 100mm F2.8L Macro IS USM
RF 24-105mm F4L IS USM
Min focus distance
26 cm−19 cm less
45 cm
Max magnification
1.4 ×5.8× more
0.24 ×
Autofocus motor
Nano USM
Nano USM
Internal focus
Yes
Yes
RF 100mm F2.8L Macro IS USM
RF 24-105mm F4L IS USM
Optical stabilization
Yes
Yes
OIS effectiveness
5 stops
5 stops
RF 100mm F2.8L Macro IS USM
RF 24-105mm F4L IS USM
Weight
730 g
700 g−30 g less
Length
148 mm
107 mm−41 mm less
Diameter
82 mm−2 mm less
84 mm
Filter thread size
67 mm
77 mm
Weather sealing
Yes
Yes
Diaphragm blades
9
9
RF 100mm F2.8L Macro IS USM
RF 24-105mm F4L IS 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 May 2026.