Canon
RF 50mm F1.2L USM
Canon RF Mount
Flagship RF 50mm f/1.2 L prime with Ring USM, 15-element design, and weather-sealed L-series build.
$2,299
Launch priceReleased Dec 2018
Canon
RF 70-200mm F4 L IS USM
Canon RF Mount
RF 70-200mm F4 L IS USM — 70–200mm f/4 for Canon RF, a popular choice in the canon lineup.
$1,899
Launch priceReleased Dec 2021
RF 70-200mm F4 L IS USM is 3 years newer.
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Wins
RF 50mm F1.2L USM
Wins
RF 70-200mm F4 L IS USM
Which would you choose?
TL;DR — Key differences
- BRF 70-200mm F4 L IS USM has higher OIS effectiveness (5 stops vs 0 stops)
- ARF 50mm F1.2L USM has lower Max aperture (Wide) (f/1.2 vs f/4)
- ARF 50mm F1.2L USM has lower Max aperture (Tele) (f/1.2 vs f/4)
- ARF 50mm F1.2L USM has lower Min focus distance (40 cm vs 80 cm)
- BRF 70-200mm F4 L IS USM has lower Weight (700 g vs 950 g)
Key specs at a glance
Size and weight, to scale
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RF 50mm F1.2L USM
⌀90 × 108 mm
950 g (2.09 lb / 33.51 oz)
Credit card
85.6 × 54 mm
for scale
RF 70-200mm F4 L IS USM
⌀84 × 146 mm
700 g (1.54 lb / 24.69 oz)
RF 50mm F1.2L USM is 38mm shorter and 6mm wider than RF 70-200mm F4 L IS USM.
RF 50mm F1.2L USM is 250 g heavier than RF 70-200mm F4 L IS 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
Why pick one over the other
Reasons to choose the RF 50mm F1.2L USM
- ✓
Max aperture (Wide)
f/1.2 vs f/4 — lower is better
- ✓
Max aperture (Tele)
f/1.2 vs f/4 — lower is better
- ✓
Special elements
Adds 1 Aspherical
- ✓
Min focus distance
40 cm vs 80 cm — lower is better
- ✓
Length
108 mm vs 146 mm — lower is better
Reasons to choose the RF 70-200mm F4 L IS USM
- ✓
OIS effectiveness
5 stops vs 0 stops — higher is better
- ✓
Special elements
Adds 2 Aspherical, 1 Super UD
- ✓
Optical stabilization
Only RF 70-200mm F4 L IS USM supports it
- ✓
Custom function button
Only RF 70-200mm F4 L IS USM supports it
- ✓
Weight
700 g vs 950 g — lower is better
- ✓
Diameter
83.5 mm vs 89.8 mm — lower is better
- ✓
Max magnification
0.25 × vs 0.19 × — 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 50mm F1.2L USM
Pros
- ✓Stunning sharpness even wide open at f/1.2
- ✓Beautiful, smooth bokeh with 10 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
RF 70-200mm F4 L IS USM
Pros
- ✓Versatile zoom range covers multiple focal lengths in one lens
- ✓Built-in optical image stabilization
- ✓Weather-sealed construction for outdoor shooting
Cons
- –Slower maximum aperture limits low-light performance
- –Third-party or older alternatives may offer better value
Decided which one is right for you?
Compare live prices for the RF 50mm F1.2L USM and RF 70-200mm F4 L IS USM at major authorized retailers.
Canon RF 50mm F1.2L USM
Canon RF 70-200mm F4 L IS USM
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
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.