Photo Editor

Canon RF 20-50mm f/4L IS USM PZ vs Canon RF 45mm F1.2 STM for RF Mount Review

  • Photo Editor
Optics
Focal Length
20-50mm
45mm
Zoom Ratio
2.5x
1x
Max Aperture
f/4
f/1.2
Min Aperture
f/22
f/16
Elements / Groups
13 / 11
9 / 7
Special Elements
3 UD glass elements; 2 aspheric elements
1 aspherical
Coatings
Super Spectra Coating (SSC); Air Sphere Coating (ASC) on inner front element; Fluorine coating on front element
-
Diaphragm Blades
9
9
Max Magnification
0.33x
0.13x
Focus
Min Focus Dist.
24cm
45cm
Autofocus
AF Motor Type
Nano USM
Stepper motor
Focus Method
internal
internal
Full-time Manual
Distance Scale
Focus Limiter
Physical
Lens Mount
Canon RF
Canon RF
Weight
420 g
346 g
Dimensions (D x L)
80 x 98 mm
78 x 75 mm
Filter Thread
67 mm
67 mm
Weather Sealing
Hood Supplied
Tripod Collar
Features
Image Stabilization
Zoom Method
Internal
No Zoom
Power Zoom
Zoom Lock
Aperture Ring
Breathing Correction
Parfocal
Custom Buttons
1
0
Color
Black
Black
General
Launch Price
USD 1399
-
Announce Date
May 13, 2026
-
Sensor Format
Full Frame
Full Frame