Home Lenses Canon RF 45mm F1.2 STM Canon · RF
Released November 2025
A compact full-frame RF standard prime with an f/1.2 aperture, STM autofocus and separate focus and control rings.
Compare with another lens Compare with… RF 20-50mm F4L IS USM PZ (2026) RF 14mm F1.4L VCM (2026) RF 7-14mm F2.8-3.5L FISHEYE STM (2026) RF 85mm F1.4L VCM (2025) RF 75–300mm F4–5.6 (2025) RF 20mm F1.4 L VCM (2025) RF-S 14–30mm F4–6.3 IS STM PZ (2025) RF 16–28mm F2.8 IS STM (2025) RF 24mm F1.4 L VCM (2024) RF 50mm F1.4 L VCM (2024) RF 70-200mm F2.8L IS USM Z (2024) RF 28–70mm F2.8 IS STM (2024) RF 35mm F1.4 L VCM (2024) RF 200–800mm F6.3–9 IS USM (2023) RF 24-105mm F2.8 L IS USM Z (2023) RF-S 10–18mm F4.5–6.3 IS STM (2023) RF 10–20mm F4 L IS STM (2023) RF 28mm F2.8 STM (2023) RF 100–300mm F2.8L IS USM (2023) RF 24–50mm F4.5–6.3 IS STM (2023) RF-S 55–210mm F5–7.1 IS STM (2023) RF 135mm F1.8 L IS USM (2023) RF 15–30mm F4.5–6.3 IS STM (2022) RF 24mm F1.8 MACRO IS STM (2022) RF-S 18–150mm F3.5–6.3 IS STM (2022) RF-S 18–45mm F4.5–6.3 IS STM (2022) RF 1200mm F8L IS USM (2022) RF 800mm F5.6L IS USM (2022) RF 100–400mm F5.6–8 IS USM (2021) RF 16mm F2.8 STM (2021) RF 14–35mm F4 L IS USM (2021) RF 100mm F2.8 L Macro IS USM (2021) RF 400mm F2.8L IS USM (2021) RF 600mm F4L IS USM (2021) RF 70–200mm F4 L IS USM (2021) RF 50mm F1.8 STM (2020) RF 85mm F2 MACRO IS STM (2020) RF 100–500mm F4.5–7.1L IS USM (2020) RF 600mm F11 IS STM (2020) RF 800mm F11 IS STM (2020) RF 24–105mm F4–7.1 IS STM (2020) RF 85mm F1.2 L USM DS (2019) RF 70–200mm F2.8 L IS USM (2019) RF 15–35mm F2.8 L IS USM (2019) RF 24–240mm F4–6.3 IS USM (2019) RF 24–70mm F2.8L IS USM (2019) RF 85mm F1.2 L USM (2019) RF 28–70mm F2 L USM (2018) RF 35mm F1.8 MACRO IS STM (2018) RF 24–105mm F4L IS USM (2018) RF 50mm F1.2 L USM (2018) EF 70–200mm f/2.8L IS III USM (2018) EF 70–200mm f/4L IS II USM (2018) EF 85mm f/1.4L IS USM (2017) EF-S 35mm f/2.8 Macro IS STM (2017) EF-S 18–55mm f/4–5.6 IS STM (2017) EF 16–35mm f/2.8L III USM (2016) EF-S 18–135mm f/3.5–5.6 IS USM (2016) EF 24–105mm f/4L IS II USM (2016) EF 35mm f/1.4L II USM (2015) EF 50mm f/1.8 STM (2015) EF 24–105mm f/3.5–5.6 IS STM (2014) EF-S 24mm f/2.8 STM (2014) EF-S 10–18mm f/4.5–5.6 IS STM (2014) EF-S 55–250mm f/4–5.6 IS STM (2013) EF-S 18–55mm f/3.5–5.6 IS STM (2013) EF 24–70mm f/4L IS USM (2012) EF 35mm f/2 IS USM (2012) EF 24–70mm f/2.8L II USM (2012) EF 24mm f/2.8 IS USM (2012) EF 28mm f/2.8 IS USM (2012) EF-S 18–135mm f/3.5–5.6 IS STM (2012) EF-S 55–250mm f/4–5.6 IS II (2011) EF-S 18–55mm f/3.5–5.6 III (2011) EF-S 18–55mm f/3.5–5.6 IS II (2011) EF 70–200mm f/2.8L IS II USM (2010) EF 100mm f/2.8L Macro IS USM (2009) EF-S 15–85mm f/3.5–5.6 IS USM (2009) EF-S 18–135mm f/3.5–5.6 IS (2009) EF 24mm f/1.4L II USM (2008) EF-S 18–200mm f/3.5–5.6 IS (2008) EF-S 55–250mm f/4–5.6 IS (2007) EF-S 18–55mm f/3.5–5.6 IS (2007) EF 50mm f/1.2L USM (2007) EF 16–35mm f/2.8L II USM (2007) EF 70–200mm f/4L IS USM (2006) EF-S 17–55mm f/2.8 IS USM (2006) EF 85mm f/1.2L II USM (2006) EF-S 18–55mm f/3.5–5.6 II (2005) EF-S 18–55mm f/3.5–5.6 II USM (2005) EF-S 60mm f/2.8 Macro USM (2005) EF 24–105mm f/4L IS USM (2005) EF-S 10–22mm f/3.5–4.5 USM (2004) EF-S 17–85mm f/4–5.6 IS USM (2004) EF-S 18–55mm f/3.5–5.6 USM (2003) EF 24–70mm f/2.8L USM (2002) EF 16–35mm f/2.8L USM (2001) EF 70–200mm f/2.8L IS USM (2001) EF 100mm f/2.8 Macro USM (2000) EF 70–200mm f/4L USM (1999) EF 35mm f/1.4L USM (1998) EF 24mm f/1.4L USM (1997) EF 135mm f/2L USM (1996) EF 200mm f/2.8L II USM (1996) EF 28mm f/1.8 USM (1995) EF 70–200mm f/2.8L USM (1995) EF 50mm f/1.4 USM (1993) EF 85mm f/1.8 USM (1992) EF 200mm f/2.8L USM (1991) EF 50mm f/1.8 II (1990) EF 35mm f/2 (1990) EF 100mm f/2.8 Macro (1990) EF 80–200mm f/2.8L (1989) EF 85mm f/1.2L USM (1989) EF 24mm f/2.8 (1988) EF 28mm f/2.8 (1987) EF 50mm f/1.8 (1987) NIKKOR Z 70–200mm f/2.8 VR S II (2026) NIKKOR Z 24–105mm f/4–7.1 (2026) NIKKOR Z DX 16–50mm f/2.8 VR (2025) NIKKOR Z DX MC 35mm f/1.7 (2025) NIKKOR Z 24-70mm f/2.8 S II (2025) NIKKOR Z 28-135mm f/4 PZ (2025) NIKKOR Z 35mm f/1.2 S (2025) NIKKOR Z 50mm f/1.4 (2024) NIKKOR Z 35mm f/1.4 (2024) NIKKOR Z 28-400mm f/4-8 VR (2024) NIKKOR Z 135mm f/1.8 S Plena (2023) NIKKOR Z 600mm f/6.3 VR S (2023) NIKKOR Z 180-600mm f/5.6-6.3 VR (2023) NIKKOR Z 70-180mm f/2.8 (2023) NIKKOR Z DX 24mm f/1.7 (2023) NIKKOR Z DX 12-28mm f/3.5-5.6 PZ VR (2023) NIKKOR Z 26mm f/2.8 (2023) NIKKOR Z 85mm f/1.2 S (2023) NIKKOR Z 600mm f/4 TC VR S (2022) NIKKOR Z 17-28mm f/2.8 (2022) NIKKOR Z 400mm f/4.5 VR S (2022) NIKKOR Z 800mm f/6.3 VR S (2022) NIKKOR Z 400mm f/2.8 TC VR S (2022) NIKKOR Z 28-75mm f/2.8 (2022) NIKKOR Z 100-400mm f/4.5-5.6 VR S (2021) NIKKOR Z 24-120mm f/4 S (2021) NIKKOR Z DX 18-140mm f/3.5-6.3 VR (2021) NIKKOR Z 40mm f/2 (2021) NIKKOR Z 28mm f/2.8 (2021) NIKKOR Z MC 105mm f/2.8 VR S (2021) NIKKOR Z MC 50mm f/2.8 (2021) NIKKOR Z 50mm f/1.2 S (2020) NIKKOR Z 14-24mm f/2.8 S (2020) NIKKOR Z 24-50mm f/4-6.3 (2020) NIKKOR Z 70-200mm f/2.8 VR S (2020) NIKKOR Z 24-200mm f/4-6.3 VR (2020) NIKKOR Z 20mm f/1.8 S (2020) NIKKOR Z DX 16-50mm f/3.5-6.3 VR (2019) NIKKOR Z DX 50-250mm f/4.5-6.3 VR (2019) NIKKOR Z 58mm f/0.95 S Noct (2019) NIKKOR Z 24mm f/1.8 S (2019) NIKKOR Z 85mm f/1.8 S (2019) NIKKOR Z 24-70mm f/2.8 S (2019) NIKKOR Z 14-30mm f/4 S (2019) NIKKOR Z 50mm f/1.8 S (2018) NIKKOR Z 24-70mm f/4 S (2018) NIKKOR Z 35mm f/1.8 S (2018) AF-S NIKKOR 500mm f/5.6E PF ED VR (2018) AF-S NIKKOR 180-400mm f/4E TC1.4 FL ED VR (2018) AF-S NIKKOR 28mm f/1.4E ED (2017) AF-S NIKKOR 70–200mm f/2.8E FL ED VR (2016) AF-S NIKKOR 105mm f/1.4E ED (2016) AF-S NIKKOR 24-70mm f/2.8E ED VR (2015) AF-S NIKKOR 200–500mm f/5.6E ED VR (2015) AF-S NIKKOR 24mm f/1.8G ED (2015) AF-S NIKKOR 500mm f/4E FL ED VR (2015) AF-S NIKKOR 600mm f/4E FL ED VR (2015) AF-S NIKKOR 20mm f/1.8G ED (2014) AF-S NIKKOR 400mm f/2.8E FL ED VR (2014) AF-S DX NIKKOR 18–300mm f/3.5–6.3G ED VR (2014) AF-S NIKKOR 35mm f/1.8G ED (2014) AF-S DX NIKKOR 18-140mm f/3.5-5.6G ED VR (2013) AF-S NIKKOR 800mm f/5.6E FL ED VR (2013) AF-S NIKKOR 28mm f/1.8G (2012) AF-S NIKKOR 85mm f/1.8G (2012) AF-S DX Micro NIKKOR 40mm f/2.8G (2011) AF-S NIKKOR 50mm f/1.8G (2011) AF-S NIKKOR 35mm f/1.4G (2010) AF-S NIKKOR 24–120mm f/4G ED VR (2010) AF-S NIKKOR 85mm f/1.4G (2010) AF-S NIKKOR 24mm f/1.4G ED (2010) AF-S NIKKOR 16–35mm f/4G ED VR (2010) AF-S DX NIKKOR 35mm f/1.8G (2009) AF-S NIKKOR 50mm f/1.4G (2008) AF-S NIKKOR 14–24mm f/2.8G ED (2007) FE 400mm F4.5 GM OSS (2026) FE 600mm F6.3 GM OSS (2026) FE 8–14mm F3.5 Fisheye G (2026) FE 100–400mm F5.6–8 OSS (2026) FE 100–400mm F4.5 GM OSS (2026) FE 28-70mm F3.5-5.6 OSS II (2026) FE 100mm F2.8 Macro GM OSS (2025) FE 50–150mm F2 GM (2025) FE 16mm F1.8 G (2025) FE 400–800mm F6.3–8 G OSS (2025) FE 28–70mm F2 GM (2024) FE 85mm F1.4 GM II (2024) E PZ 16-50mm F3.5-5.6 OSS II (2024) FE 16-25mm F2.8 G (2024) FE 24-50mm F2.8 G (2024) FE 300mm F2.8 GM OSS (2024) FE 16–35mm F2.8 GM II (2023) FE 70-200mm F4 Macro G OSS II (2023) FE 50mm F1.4 GM (2023) FE 20-70mm F4 G (2023) E 11mm F1.8 (2022) E 15mm F1.4 G (2022) E PZ 10-20mm F4 G (2022) FE 24–70mm F2.8 GM II (2022) FE PZ 16-35mm F4 G (2022) FE 70–200mm F2.8 GM OSS II (2021) FE 14mm F1.8 GM (2021) FE 24mm F2.8 G (2021) FE 40mm F2.5 G (2021) FE 50mm F1.2 GM (2021) FE 50mm F2.5 G (2021) FE 35mm F1.4 GM (2021) FE 28-60mm F4-5.6 (2020) FE 12-24mm F2.8 GM (2020) FE 20mm F1.8 G (2020) E 70-350mm F4.5-6.3 G OSS (2019) E 16-55mm F2.8 G (2019) FE 35mm F1.8 (2019) FE 200-600mm F5.6-6.3 G OSS (2019) FE 600mm F4 GM OSS (2019) FE 135mm F1.8 GM (2019) FE 24mm F1.4 GM (2018) FE 400mm F2.8 GM OSS (2018) E 18-135mm F3.5-5.6 OSS (2018) FE 24-105mm F4 G OSS (2017) FE 100-400mm F4.5-5.6 GM OSS (2017) FE 12-24mm F4 G (2017) FE 16-35mm F2.8 GM (2017) FE 100mm F2.8 STF GM OSS (2017) FE 85mm F1.8 (2017) E PZ 18-110mm F4 G OSS (2016) FE 50mm F2.8 Macro (2016) FE 70-200mm F2.8 GM OSS (2016) Planar T* FE 50mm F1.4 ZA (2016) FE 50mm F1.8 (2016) FE 70-300mm F4.5-5.6 G OSS (2016) FE 24-70mm F2.8 GM (2016) FE 85mm F1.4 GM (2016) FE 90mm F2.8 Macro G OSS (2015) Distagon T* FE 35mm F1.4 ZA (2015) FE 24-240mm F3.5-6.3 OSS (2015) FE 28mm F2 (2015) FE PZ 28-135mm F4 G OSS (2014) Vario-Tessar T* FE 16-35mm F4 ZA OSS (2014) FE 70-200mm F4 G OSS (2014) Vario-Tessar T* FE 24-70mm F4 ZA OSS (2014) E PZ 18-105mm F4 G OSS (2013) Sonnar T* FE 55mm F1.8 ZA (2013) 70-200mm F2.8 G SSM II (2013) Sonnar T* FE 35mm F2.8 ZA (2013) Vario-Tessar T* E 16-70mm F4 ZA OSS (2013) Planar T* 50mm F1.4 ZA SSM (2013) E 20mm F2.8 (2013) E 10-18mm F4 OSS (2012) E 35mm F1.8 OSS (2012) E PZ 18-200mm F3.5-6.3 OSS (2012) E 18-200mm F3.5-6.3 OSS LE (2012) E 50mm F1.8 OSS (2011) Sonnar T* E 24mm F1.8 ZA (2011) DT 16–50mm F2.8 SSM (2011) E 55-210mm F4.5-6.3 OSS (2011) E 30mm F3.5 Macro (2011) DT 35mm F1.8 SAM (2010) E 16mm F2.8 (2010) DT 30mm F2.8 Macro SAM (2009) DT 50mm F1.8 SAM (2009) Vario-Sonnar T* 16-35mm F2.8 ZA SSM (2009) Vario-Sonnar T* 24–70mm F2.8 ZA SSM (2008) Vario-Sonnar T* DT 16–80mm F3.5–4.5 ZA (2007) Planar T* 85mm F1.4 ZA (2006) Sonnar T* 135mm F1.8 ZA (2006) 70–200mm F2.8 G (2006) 50mm F1.4 (2006) 50mm F2.8 Macro (2006)
Mount Canon RF
Focal length 45 mm
Max aperture f/1.2
Stabilisation No
Weight 346 g What reviewers say Reviewers like the compact size, bright aperture and generally quick autofocus, but report soft edges and heavy digital correction. Photography Blog finds pleasing blur and good value despite noisy manual focus. Amateur Photographer finds rougher blur and conspicuous fringing, preferring a cheaper f/1.8 or better f/1.4 over paying for f/1.2 alone.
From amateurphotographer.com , photographyblog.com , photographyblog.com and photographyblog.com
Optics
Lens type Prime
Focal length 45 mm
Maximum aperture f/1.2
Minimum aperture f/16
Optical construction Nine elements in seven groups
Special elements One plastic-moulded aspherical element (Canon USA)
Coatings Super Spectra coating
Aperture detail f/1.2–16
Diaphragm Nine aperture blades
Angle of view 43°35′ horizontal, 29°50′ vertical and 51°20′ diagonal on full frame Mount and compatibility
Mounts Canon RF
Image circle Full frame
Compatibility Canon EOS R cameras; full-frame image circle
Teleconverter support Canon RF extenders not compatible Focus and stabilisation
Autofocus Yes
Minimum focus distance 0.45 m
Maximum magnification 0.13×
Optical stabilisation No
Autofocus detail Gear-type STM autofocus with magnetic focus-position detection; full-time electronic manual focus
Focus distance detail Minimum focusing distance 0.45 m; Canon does not separately specify AF/MF distances
Stabilisation detail No optical image stabilisation (Canon USA) Design
Dust and moisture resistant No
Filter diameter 67 mm
Maximum diameter 78 mm
Length 75 mm
Weight 346 g
Controls Separate focus and clickable control rings; AF/MF switch; no iris ring or lens function button (Canon USA)
Filter detail 67 mm front screw-in filter thread
Weather resistance No dust or weather resistant construction (Canon USA)
Dimensions detail Approximately 78 mm maximum diameter × 75 mm length
Weight detail Approximately 346 g lens
Lens hood Optional ES-73B hood and LP1116 case; E-67 II front cap and Lens Dust Cap RF listed by Canon
In the box Front and rear lens caps (Amateur Photographer); hood not included
Release detail Canon Japan's 14 November 2025 notice confirms first sale on 28 November 2025; Photography Blog instead reports availability from 20 November without a matching regional maker day, so no UK date is inferred Pros and cons Pros + Bright f/1.2 maximum aperture+ Compact 346 g construction+ Separate focus and control ringsCons − No optical image stabilisation− No weather resistant construction− Lens hood sold separately
