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Register/Canon RF-mount/Voigtländer/Standard
Voigtlander Nokton 40mm F1.2 Aspherical (Canon RF) — Studio view
Studio view© COSINA
VoigtlanderNokton

Voigtlander Nokton 40mm F1.2 Aspherical (Canon RF)

RF · PRIME
40mm
APERTURE
1:1.2
MFRING·DC

Launch MSRP

unconfirmed
Weight
400g
Filter
⌀58mm
Min focus
0.30m
Max mag.
0.20×
Formula
8E / 6G
Released
2024
AlternativesCompare with…
01

Specification sheet

Optical construction

8
Elements
6
Groups
0 LD · 2 ASPH
10 rounded blades
  • 2x Aspherical
Aperture range
f/1.2 — f/22

Physical & ergonomics

16842NOKTON
Weight
400g
⌀ × length
70.8 × 56.4mm
Filter
⌀58mm
Weather sealed
No
Aperture ring
Yes · de-click

Autofocus actuator

Manual Helicoid
Manual Focus
Stabilisation
Body IBIS
Teleconverter
Not supported
AF speed score
—

Close-up performance

Min focus distance
0.30m
Max magnification
0.20× (1:4.9)
0.20×
0×0.25×0.5× half macro1.0× macro
02

Optical character

The RF Nokton 40mm F1.2 brings Cosina's compact f/1.2 forty to Canon's full-frame mirrorless bodies. Its eight elements in six groups include two aspherical elements and the 40mm focal length gives a 54.9° angle of view.

The lens is 56.4mm long, weighs 400g and takes 58mm filters, with a dedicated screw-in hood. It focuses to 0.3m (1:4.9), and the 10-blade aperture ring has a switch for clickless operation. Electronic contacts pass EXIF data, support Canon's magnification, peaking and focus guide (not on the EOS RP), and feed 3-axis in-body stabilisation on bodies that have it. Cosina warns of a possible magenta cast at the frame edges on the EOS R, RP and R6.

Reviewer consensus

We summarise professional reviews only after reading at least two independent ones. Not enough have been published or verified for this lens yet.

Owner sentiment

Owner feedback will appear once we have verified real-world reports for this lens.

03

Strengths, weaknesses & performance

Strengths

  • +f/1.2 at 40mm in a 400g body
  • +0.3m close focus (1:4.9)
  • +Click-stop switch on the aperture ring
  • +Electronic contacts with EXIF, focus guide and IBIS support
  • +Standard 58mm filters

Weaknesses

  • −Manual focus only
  • −Possible edge magenta cast on EOS R, RP and R6
  • −No focus guide on the EOS RP

Six-axis rating

Ratings are published once at least two independent professional reviews have been read.

04

Technical specifications

Optics
MountCanon RF · full frame
Focal length40mm
CategoryStandard
Maximum aperturef/1.2
Minimum aperturef/22
Construction8 elements in 6 groups
Special elements2x Aspherical
Aperture blades10
Focus
Focus typeManual Focus
DriveManual Helicoid
Minimum focus0.30m
Max magnification0.20×
StabilisationNone (uses body IBIS)
TeleconvertersNot supported
Body
Weight400g
Diameter × length70.8 × 56.4mm
Filter thread⌀58mm
Weather sealingNo
Aperture ringYes
De-clickable apertureYes
Release year2024
Launch MSRPUnconfirmed
05

Sources

Verified 2026-10-23 against the pages below. Specifications come from the maker; summaries only reflect reviews and owner reports we actually read.

Specifications

  • cosina.co.jp/voigtlander/en/rf-mount-lenses/nokton-40mm-f1-2-aspherical/
  • cosina.co.jp/voigtlander/rf-mount-lenses/nokton-40mm-f1-2-aspherical/
  • en.wikipedia.org/wiki/Canon_RF_mount
  • cosina.co.jp/wp/wp-content/uploads/2023/12/ccRF-40_12_LDehytgfd.svg
06

Similar focal length alternatives

  • VSNokton 40mm F1.2 Aspherical (Canon RF) vs RF 24-70mm F2.8 L IS USM
  • VSNokton 40mm F1.2 Aspherical (Canon RF) vs RF 28-70mm F2 L USM
  • VSNokton 40mm F1.2 Aspherical (Canon RF) vs RF 28-70mm F2.8 IS STM
  • CanonL

    RF 24-70mm F2.8 L IS USM

    Canon RF 24-70mm F2.8 L IS USM
    24–70mmF2.8
    WT
    900g
    FLT
    ⌀82mm
    MFD
    0.21m
    MSRP
    $2,299
    AFSTABWR
  • CanonL

    RF 28-70mm F2 L USM

    Canon RF 28-70mm F2 L USM
    28–70mmF2
    WT
    1,430g
    FLT
    ⌀95mm
    MFD
    0.39m
    MSRP
    —
    AFWR
  • Canon

    RF 28-70mm F2.8 IS STM

    Canon RF 28-70mm F2.8 IS STM
    28–70mmF2.8
    WT
    495g
    FLT
    ⌀67mm
    MFD
    0.24m
    MSRP
    $1,099
    AFSTAB