Sony FE 50mm f/1.4 GM Full-Frame Autofocus Lens for E-Mount, Black {67} SEL50F14GM

Model #389950
  • $1,199.00

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Frequently used with above-average wear. May have dents, dings, or finish loss. Lens glass may have small scratches, dust, and blemishes, and zoom/focus ring tension may have moderate looseness or tightness overall, but should not affect picture quality. Accessories usually not included, unless noted in listing. 180-day warranty.
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Sony's 50mm f/1.4 G Master prime built for Alpha speed

At 516 grams and 96mm long, this is a 50mm f/1.4 that photographers actually carry all day. The 14-element, 11-group optical formula includes two XA (Extreme Aspherical) elements to suppress onion-ring artifacts in out-of-focus highlights and one ED element to keep chromatic aberration in check at wide apertures. The 11-blade rounded diaphragm produces smooth, natural subject separation at f/1.4, and Nano AR II coating keeps contrast high when shooting into or across light sources.

The linear motor autofocus is fast enough to keep pace with Sony Alpha 1 bodies firing at 30 frames per second, an advantage that third-party glass cannot match on Sony's top-tier bodies. Subject and eye detection locks on reliably in low light, and the system performs with more consistency than competing 50mm options in the E-mount ecosystem. Internal focus keeps the barrel length fixed throughout the focus range, which matters for gimbal balance.

Videographers get a de-clickable aperture ring, an iris lock switch to prevent accidental exposure shifts mid-take, and focus breathing compensation support for clean focus pulls. The 67mm filter thread aligns with other G Master primes in the lineup, so a single set of filters covers multiple focal lengths. This is a workhorse 50mm that earns its place on a professional kit without demanding a workout to carry it.

Who It's For

Wedding and event photographers working fast-moving candid situations get reliable eye-detection AF and f/1.4 low-light performance without lugging a 778-gram f/1.2. Documentary and street shooters benefit from the compact 80.6mm diameter and silent linear motor, both practical when discretion matters. Video directors and gimbal operators gain from the de-clicked aperture ring, focus breathing compensation, and a consistent weight distribution that makes balance adjustments straightforward. Sports and wildlife photographers pairing this with the Alpha 1 get the full 30fps buffer that native G Master lenses unlock, keeping subject tracking fluid at the camera's maximum rate.

Key Features

  • f/1.4 maximum aperture with 11-blade rounded diaphragm for smooth subject separation
  • 14-element, 11-group design with two XA aspherical elements reducing onion-ring bokeh artifacts
  • Linear motor autofocus tracks at Sony Alpha 1's 30 frames per second capture rate
  • Internal focus keeps barrel length fixed, critical for gimbal balance and video work
  • 516 grams and 96mm length: carries all day without fatigue or gimbal strain
  • 67mm filter thread shared with FE 24mm f/1.4 GM and FE 35mm f/1.4 GM
  • De-clickable aperture ring, iris lock switch, and focus breathing compensation for silent video pulls
  • Dust and moisture-resistant body with fluorine-coated front element

FAQ

Can the Sony FE 50mm f/1.4 GM keep up with Sony Alpha 1 burst shooting?
Yes. The linear motor AF tracks reliably at the Alpha 1's full 30 frames per second, an advantage third-party 50mm lenses cannot match on Sony's flagship bodies.
Does this lens have image stabilization?
No optical stabilization. It relies on in-body stabilization in compatible Sony Alpha cameras, which is sufficient for handheld work at typical 50mm shutter speeds.
How does the bokeh compare to the f/1.2 GM version?
The f/1.4 produces nearly identical bokeh quality with its 11-blade rounded aperture and XA elements suppressing onion-ring artifacts. The f/1.2 offers one additional stop of light, but few real-world situations justify its $700 premium.
What's the closest focus distance, and is it suitable for macro work?
Minimum focus is 41 cm (16.1 inches) with 0.18x magnification in manual focus mode. This handles close-ups competently but falls short of macro performance-not a macro lens.
How does autofocus perform in low light?
Fast and accurate. Real-world testing shows superior low-light AF reliability compared to the f/1.2 GM and Sigma 50mm f/1.4 DG DN Art, with occasional eye-detection hesitation only at very close distances.
Is this lens weather-sealed?
Dust and moisture-resistant with sealed seams, gaskets on all controls, and a fluorine-coated front element that repels water and oil. No formal IP rating, but construction handles typical outdoor conditions.
What's the benefit of internal focus for video work?
The barrel length stays fixed throughout focus range, which matters for gimbal balance during handheld video. Combined with the de-clickable aperture ring and focus breathing compensation support, this is a purposeful video lens.
SpecificationValue
Focal Length50mm
Max Aperturef/1.4
Min Aperturef/22
MountSony E / Sony FE
StabilizationNo
AF SystemYes
Min Focus Distance41 cm / 16.1 in
Lens TypePrime
Lens FormatFull Frame
Elements14
Groups11
Diaphragm Blades11
Aperture RingYes
Aperture NotesRounded aperture blades
AF Motor TypeLinear Motor
Focus MethodInternal
Maximum Magnification0.18x
Distance ScaleNo
DOF ScaleNo
Filter Thread67mm
Length96 mm / 3.8 in
Diameter80.6 mm / 3.2 in
Weight516 g / 18.2 oz

This description was generated using AI based on KEH's internal product standards, product expertise, and knowing what customers care about most. While we strive for accuracy, details may vary by individual item.

Brand Name Sony
Filter Size 67mm
Focus Type Autofocus (lens motor)
Lens Mount Sony E Mount
Lens Type Standard / Normal
Max Focal Length 50mm
Min Focal Length 50mm