Yongnuo 50mm F/1.4 EF / F

Standard prime lens • Digital era • Discontinued

Announced:
· May 2018
Production status:
● Discontinued
Country of design:
· PRC (People's Republic of China)
Original name:
· YONGNUO LENS YN50mm F1.4
· YONGNUO LENS YN50mm F1.4 E
Class:
· Ultra-fast full-frame standard prime lens
· Professional model

Specification

Optical design:
Maximum format:	35mm full frame
Focal length:	50mm
Speed:	F/1.4
Lens construction:	9 elements in 7 groups
Lens construction:	4 UHR
Mount and Flange focal distance:	Canon EF [44mm]
Mount and Flange focal distance:	Nikon F [46.5mm]
Diagonal angle of view:	46.8° (35mm full frame)
On Canon EOS APS-C [1.59x] cameras:
35mm equivalent focal length:	79.5mm (in terms of field of view)
35mm equivalent speed:	F/2.2 (in terms of depth of field)
Diagonal angle of view:	30.4°
On Nikon D APS-C [1.53x] cameras:
35mm equivalent focal length:	76.5mm (in terms of field of view)
35mm equivalent speed:	F/2.1 (in terms of depth of field)
Diagonal angle of view:	31.6°
Diaphragm mechanism:
Diaphragm type:	Automatic
Aperture control:	None; the aperture is controlled from the camera
Number of blades:	7 (seven)
Focusing:
Closest focusing distance:	0.45m
Magnification ratio:	1:6.67
Focusing modes:	Autofocus (AF), Manual focus (MF)
Autofocus motor:	Micromotor
Manual focus control:	Focusing ring
Focus mode selector:	AF - MF
Manual focus override in autofocus mode:	-
Optical Image Stabilizer (OIS):
Built-in OIS:	-
Physical characteristics:
Weight:	572g (Canon EF)
Weight:	577g (Nikon F)
Maximum diameter x Length:	⌀81×93mm (Canon EF)
Maximum diameter x Length:	⌀81×92mm (Nikon F)
Weather sealing:	-
Fluorine coating:	-
Accessories:
Filters:	Screw-type 58mm
Lens hood:	Bayonet-type round
Teleconverters:	Not available

Source of data

Manufacturer's technical data.

From the editor

A large and heavy, ultra-fast professional standard lens for Canon EOS series / Nikon D series 35mm full-frame digital SLR cameras. Yongnuo's own development, not optically based on Canon/Nikon 50mm F/1.4 models. It has a moderately complex optical formula, which includes 4 ultra-high refractive index elements. Despite the fact that the lens belongs to the class of professional optics, it still does not have weather sealing.

Both the Canon and Nikon versions are equipped with a built-in micromotor. During focusing, the front element extends beyond the lens barrel by approximately 15mm. During autofocus, the manual focusing ring does not rotate.

The front of the lens has a bayonet mount for a lens hood (code unknown), but the lens was supplied without a dedicated lens hood.

There is a micro USB 2.0 Type B port at the rear of the lens, which can be used to update the lens firmware.

The Nikon F-mount version was announced in August 2018.

Notes

Most lenses designed for the Nikon F mount are equipped with a mechanical diaphragm control system. However, the Nikon F-mount version of this lens features electromagnetic diaphragm (EMD) control system. It provides highly accurate diaphragm control and stable auto exposure performance during continuous shooting.
EMD lenses are not compatible with Nikon D2- or D1-series, D200, D100, D90, D80, D70, D70s, D60, D50, D40, D40X, D3000 digital SLR cameras and Nikon film SLR cameras.

Lenses with similar focal length

■Canon EF mount (12)
Canon EF 50mm F/1.2L USM • ⌀72	Pro	2007 ●	compare	5	1
Advantages: 5 Disadvantages: 1 · Older model (2007) · In production · Slightly faster · Aspherical design · More diaphragm blades (8 vs 7) · Ring-type Ultrasonic Motor · Manual focus override in autofocus mode · Smaller (66mm vs 93mm) · Weather-sealed · Larger filter size (72mm vs 58mm) HIDE
Canon EF 50mm F/1.4 USM • ⌀58	Pro	1993 ●	compare	5	1
Advantages: 5 Disadvantages: 1 · Older model (1993) · In production · Not optimized for digital cameras · More diaphragm blades (8 vs 7) · Micro Ultrasonic Motor · Manual focus override in autofocus mode · Much lighter (290g vs 572g) · Much smaller (51mm vs 93mm) HIDE
Canon EF 50mm F/1.8 II • ⌀52		1990 ●	compare	2	1
Advantages: 2 Disadvantages: 1 · Older model (1990) · Slightly slower · Not optimized for digital cameras · Less diaphragm blades (5 vs 7) · Much lighter (130g vs 572g) · Much smaller (51mm vs 93mm) · Smaller filter size (52mm vs 58mm) HIDE
Canon EF 50mm F/1L USM • ⌀72	Pro	1987 ●	compare	5	4
Advantages: 5 Disadvantages: 4 · Older model (1987) · Faster · Not optimized for digital cameras · Aspherical design · Floating element system · More diaphragm blades (8 vs 7) · Larger closest focusing distance (0.60m vs 0.45m) · Slightly smaller magnification (1:9.1 vs 1:6.67) · Ring-type Ultrasonic Motor · Manual focus override in autofocus mode · Focusing distance range limiter · Much heavier (985g vs 572g) · Slightly smaller (81.5mm vs 93mm) · Larger filter size (72mm vs 58mm) HIDE
Canon EF 50mm F/1.8 • ⌀52		1987 ●	compare	2	1
Advantages: 2 Disadvantages: 1 · Older model (1987) · Slightly slower · Not optimized for digital cameras · Less diaphragm blades (5 vs 7) · Arc-Form Drive instead of Micromotor · Much lighter (190g vs 572g) · Much smaller (42.5mm vs 93mm) · Smaller filter size (52mm vs 58mm) HIDE
Canon EF 50mm F/1.8 STM • ⌀49		2015 ●	compare	6	0
Advantages: 6 Disadvantages: 0 · Older model (2015) · In production · Slightly slower · Slightly smaller closest focusing distance (0.35m vs 0.45m) · Slightly larger magnification (1:4.76 vs 1:6.67) · Stepping motor · Manual focus override in autofocus mode · Much lighter (159g vs 572g) · Much smaller (39.3mm vs 93mm) · Smaller filter size (49mm vs 58mm) HIDE
Sigma 50mm F/1.4 EX DG HSM • ⌀77	Pro	2008 ●	compare	3	1
Advantages: 3 Disadvantages: 1 · Older model (2008) · Aspherical design · More diaphragm blades (9 vs 7) · Slightly smaller magnification (1:7.4 vs 1:6.67) · Hyper Sonic Motor · Manual focus override in autofocus mode · Slightly lighter (505g vs 572g) · Smaller (68.2mm vs 93mm) · Larger filter size (77mm vs 58mm) NOTE: Approximate weight and length were used for comparison purposes. HIDE
Sigma 50mm F/1.4 DG HSM \| A • ⌀77	Pro	2014 ●	compare	4	2
Advantages: 4 Disadvantages: 2 · Older model (2014) · In production · Aspherical design · Floating element system · More diaphragm blades (9 vs 7) · Slightly smaller closest focusing distance (0.40m vs 0.45m) · Slightly larger magnification (1:5.6 vs 1:6.67) · Hyper Sonic Motor · Manual focus override in autofocus mode · Much heavier (815g vs 572g) · Larger filter size (77mm vs 58mm) NOTE: Approximate weight and length were used for comparison purposes. HIDE
Tamron SP 45mm F/1.8 Di [VC] USD F013 • ⌀67		2015 ●	compare	6	1
Advantages: 6 Disadvantages: 1 · Older model (2015) · Wider angle of view · Slightly slower · Aspherical design · Floating element system · More diaphragm blades (9 vs 7) · Smaller closest focusing distance (0.29m vs 0.45m) · Larger magnification (1:3.4 vs 1:6.67) · Ultrasonic Silent Drive · Manual focus override in autofocus mode · Has image stabilizer · Weather-sealed · Fluorine coating · Larger filter size (67mm vs 58mm) HIDE
Tokina opera 50mm F/1.4 FF • ⌀72	Pro	2018 ●	compare	4	2
Advantages: 4 Disadvantages: 2 · In production · More complex optical design · Aspherical design · More diaphragm blades (9 vs 7) · Slightly smaller closest focusing distance (0.40m vs 0.45m) · Slightly larger magnification (1:5.56 vs 1:6.67) · Ring-type Ultrasonic Motor · Manual focus override in autofocus mode · Much heavier (950g vs 572g) · Slightly larger (107.5mm vs 93mm) · Weather-sealed · Larger filter size (72mm vs 58mm) NOTE: Approximate weight and length were used for comparison purposes. HIDE
Yongnuo 50mm F/1.8 EF • ⌀52		2014 ●	compare	3	1
Advantages: 3 Disadvantages: 1 · Older model (2014) · In production · Slightly slower · Much lighter (120g vs 572g) · Much smaller (55mm vs 93mm) · Smaller filter size (52mm vs 58mm) · Lens hood is not available HIDE
Yongnuo 50mm F/1.8 EF II • ⌀58		2018 ●	compare	3	1
Advantages: 3 Disadvantages: 1 · In production · Slightly slower · Slightly smaller closest focusing distance (0.35m vs 0.45m) · Slightly larger magnification (1:4.76 vs 1:6.67) · Much lighter (162g vs 572g) · Much smaller (51mm vs 93mm) · Lens hood is not available HIDE

■Nikon F mount (14)
Nikon AF Nikkor 50mm F/1.8D • ⌀52		2002 ●	compare	3	2
Advantages: 3 Disadvantages: 2 · Older model (2002) · In production · Slightly slower · Not optimized for digital cameras · Mechanical diaphragm control system · Slightly larger magnification (1:6.6 vs 1:6.67) · In-camera motor · No focus mode selector · Much lighter (155g vs 577g) · Much smaller (39mm vs 92mm) · Smaller filter size (52mm vs 58mm) · Compatible with teleconverters HIDE
Nikon AF-S Nikkor 50mm F/1.8G • ⌀58		2011 ●	compare	6	0
Advantages: 6 Disadvantages: 0 · Older model (2011) · In production · Slightly slower · Aspherical design · Mechanical diaphragm control system · Silent Wave Motor · Manual focus override in autofocus mode · Much lighter (185g vs 577g) · Much smaller (52.5mm vs 92mm) · Weather-sealed lens mount HIDE
Nikon AF Nikkor 50mm F/1.4D • ⌀52	Pro	1995 ●	compare	3	2
Advantages: 3 Disadvantages: 2 · Older model (1995) · In production · Not optimized for digital cameras · Mechanical diaphragm control system · Slightly smaller magnification (1:6.76 vs 1:6.67) · In-camera motor · No focus mode selector · Much lighter (230g vs 577g) · Much smaller (42.5mm vs 92mm) · Smaller filter size (52mm vs 58mm) · Compatible with teleconverters HIDE
Nikon AF-S Nikkor 50mm F/1.4G • ⌀58	Pro	2008 ●	compare	6	0
Advantages: 6 Disadvantages: 0 · Older model (2008) · In production · Mechanical diaphragm control system · More diaphragm blades (9 vs 7) · Silent Wave Motor · Manual focus override in autofocus mode · Much lighter (280g vs 577g) · Much smaller (54mm vs 92mm) · Weather-sealed lens mount HIDE
Nikon AF-S Nikkor 50mm F/1.8G Special Edition • ⌀58		2013 ●	compare	6	0
Advantages: 6 Disadvantages: 0 · Older model (2013) · In production · Slightly slower · Aspherical design · Mechanical diaphragm control system · Silent Wave Motor · Manual focus override in autofocus mode · Much lighter (190g vs 577g) · Much smaller (52.5mm vs 92mm) · Weather-sealed lens mount HIDE
Nikon AF Nikkor 50mm F/1.8 [I] • ⌀52		1986 ●	compare	2	2
Advantages: 2 Disadvantages: 2 · Older model (1986) · Slightly slower · Not optimized for digital cameras · Mechanical diaphragm control system · Slightly larger magnification (1:6.6 vs 1:6.67) · In-camera motor · No focus mode selector · Much lighter (210g vs 577g) · Much smaller (39mm vs 92mm) · Smaller filter size (52mm vs 58mm) · Compatible with teleconverters HIDE
Nikon AF Nikkor 50mm F/1.8 [II] • ⌀52		1990 ●	compare	2	2
Advantages: 2 Disadvantages: 2 · Older model (1990) · Slightly slower · Not optimized for digital cameras · Mechanical diaphragm control system · Slightly larger magnification (1:6.6 vs 1:6.67) · In-camera motor · No focus mode selector · Much lighter (160g vs 577g) · Much smaller (39mm vs 92mm) · Smaller filter size (52mm vs 58mm) · Compatible with teleconverters HIDE
Nikon AF Nikkor 50mm F/1.4 [I] • ⌀52	Pro	1986 ●	compare	2	2
Advantages: 2 Disadvantages: 2 · Older model (1986) · Not optimized for digital cameras · Mechanical diaphragm control system · Slightly smaller magnification (1:6.76 vs 1:6.67) · In-camera motor · No focus mode selector · Much lighter (250g vs 577g) · Much smaller (42.5mm vs 92mm) · Smaller filter size (52mm vs 58mm) · Compatible with teleconverters HIDE
Nikon AF Nikkor 50mm F/1.4 [II] • ⌀52	Pro	1991 ●	compare	2	2
Advantages: 2 Disadvantages: 2 · Older model (1991) · Not optimized for digital cameras · Mechanical diaphragm control system · Slightly smaller magnification (1:6.76 vs 1:6.67) · In-camera motor · No focus mode selector · Much lighter (255g vs 577g) · Much smaller (42.5mm vs 92mm) · Smaller filter size (52mm vs 58mm) · Compatible with teleconverters HIDE
Sigma 50mm F/1.4 EX DG HSM • ⌀77	Pro	2008 ●	compare	3	1
Advantages: 3 Disadvantages: 1 · Older model (2008) · Aspherical design · Mechanical diaphragm control system · More diaphragm blades (9 vs 7) · Slightly smaller magnification (1:7.4 vs 1:6.67) · Hyper Sonic Motor · Manual focus override in autofocus mode · Slightly lighter (505g vs 577g) · Smaller (68.2mm vs 92mm) · Larger filter size (77mm vs 58mm) NOTE: Approximate weight and length were used for comparison purposes. HIDE
Sigma 50mm F/1.4 DG HSM \| A • ⌀77	Pro	2014 ●	compare	4	2
Advantages: 4 Disadvantages: 2 · Older model (2014) · In production · Aspherical design · Floating element system · Mechanical diaphragm control system · More diaphragm blades (9 vs 7) · Slightly smaller closest focusing distance (0.40m vs 0.45m) · Slightly larger magnification (1:5.6 vs 1:6.67) · Hyper Sonic Motor · Manual focus override in autofocus mode · Much heavier (815g vs 577g) · Larger filter size (77mm vs 58mm) NOTE: Approximate weight and length were used for comparison purposes. HIDE
Tamron SP 45mm F/1.8 Di [VC] USD F013 • ⌀67		2015 ●	compare	6	1
Advantages: 6 Disadvantages: 1 · Older model (2015) · Wider angle of view · Slightly slower · Aspherical design · Floating element system · Mechanical diaphragm control system · More diaphragm blades (9 vs 7) · Smaller closest focusing distance (0.29m vs 0.45m) · Larger magnification (1:3.4 vs 1:6.67) · Ultrasonic Silent Drive · Manual focus override in autofocus mode · Has image stabilizer · Weather-sealed · Fluorine coating · Larger filter size (67mm vs 58mm) HIDE
Tokina opera 50mm F/1.4 FF • ⌀72	Pro	2018 ●	compare	4	2
Advantages: 4 Disadvantages: 2 · In production · More complex optical design · Aspherical design · More diaphragm blades (9 vs 7) · Slightly smaller closest focusing distance (0.40m vs 0.45m) · Slightly larger magnification (1:5.56 vs 1:6.67) · Ring-type Ultrasonic Motor · Manual focus override in autofocus mode · Much heavier (950g vs 577g) · Slightly larger (107.5mm vs 92mm) · Weather-sealed · Larger filter size (72mm vs 58mm) HIDE
Yongnuo 50mm F/1.8 F • ⌀58		2016 ●	compare	2	1
Advantages: 2 Disadvantages: 1 · Slightly slower · Mechanical diaphragm control system · Much lighter (120g vs 577g) · Much smaller (55mm vs 92mm) · Lens hood is not available HIDE