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Fujifilm

GFX50S II

Affordable medium format entry with 51MP and IBIS.

$3,999

Released Sep 2021

vs
Alpha 7R VI

Sony

Alpha 7R VI

66.8MP fully-stacked full-frame high-resolution body with 30fps bursts, 8K 30p, 4K 120p, and Sony's new BIONZ XR2 engine.

$4,499

Released Jun 2026

Alpha 7R VI is 4.8 years newer.

Wins

0categories

GFX50S II

Landscape

Wins

10categories

Alpha 7R VI

PortraitVideo & Hybrid

2 categories tied

TL;DR — Key differences

GFX50S II wins 0 categories·Alpha 7R VI wins 5 categories
  • BAlpha 7R VI has higher Burst (electronic) (30 fps vs 2.2 fps)
  • BAlpha 7R VI has higher Max video bit rate (600 Mbps vs 50 Mbps)
  • BAlpha 7R VI has higher AF points / zones (759 vs 117)
  • BAlpha 7R VI has higher RAW buffer depth (150 frames vs 35 frames)
  • BAlpha 7R VI has higher EVF resolution (9,437,184 vs 3,690,000)

Key specs at a glance

GFX50S IIAlpha 7R VI
Resolution51.4 MP66.8 MP
Sensor43.8 x 32.9 mmFull Frame
ISO max12,80032,000
Burst3 fps30 fps
IBIS6.5-stopYes
Weight900 g713 g
Battery455 shots600 shots
4K120 fps

Size and weight, to scale

GFX50S II

150 × 104 × 87 mm

900 g (1.98 lb / 31.75 oz)

Alpha 7R VI front view

Alpha 7R VI

133 × 97 × 83 mm

713 g (1.57 lb / 25.15 oz)

GFX50S II is 17mm wider, 7mm taller, and 4mm thicker than Alpha 7R VI.

GFX50S II is 187 g heavier than Alpha 7R VI.

Depth (front-to-back): 87mm GFX50S II · 83mm Alpha 7R VI

Back view, to scale

Width × Height — same proportions as the front of the body.

GFX50S II

150 × 104 mm

Alpha 7R VI back view

Alpha 7R VI

133 × 97 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

GFX50S II

150 × 87 mm

Alpha 7R VI top view

Alpha 7R VI

133 × 83 mm

Sensor size, to scale

GFX50S II

43.8 × 32.9 mm · Medium Format

1441 mm² area

Alpha 7R VI

35.9 × 24 mm · Full Frame

862 mm² area

1.7× larger sensor area = shallower depth of field and better low-light performance.

Lens ecosystem

Native lens selection

GFX50S II: mount data unavailable

Alpha 7R VI

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

Counts include current first-party and major third-party native autofocus lenses.

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseGFX50S IIAlpha 7R VI
Portrait
4.0Fair
8.5Excellent✓ wins
Sports & Action
1.5Limited
5.5Fair✓ wins
Video & Hybrid
3.0Limited
8.0Excellent✓ wins
Landscape
7.0Good
7.5Good✓ wins
Travel
5.0Fair
5.0Fair
Wildlife
1.5Limited
6.5Good✓ wins
Vlogging
3.0Limited
5.5Fair✓ wins

Why pick one over the other

Reasons to choose

GFX50S II

  • Dimensions (W×H×D mm)

    Adds 150, 104.2, 87.2

  • Card types

    Adds SD UHS-II, SDXC V90

  • Weather sealing

    Only GFX50S II supports it

Reasons to choose

Alpha 7R VI

  • Subject recognition

    Adds Human, Animal, Bird…

  • Dimensions (W×H×D mm)

    Adds 132.7, 96.9, 82.9

  • Card types

    Adds CFexpress Type A, SDXC UHS-II

  • Burst (electronic)

    30 fps vs 2.2 fps — higher is better

  • Max video bit rate

    600 Mbps vs 50 Mbps — higher is better

  • AF points / zones

    759 vs 117 — higher is better

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I…

  • RAW buffer depth

    150 frames vs 35 frames — higher is better

Both cameras share

  • ISO min (native)Both 100
  • In-body stabilizationBoth support in-body stabilization
  • Card slotsBoth 2
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

GFX50S II

Pros

  • Medium format under $4K
  • IBIS
  • Great color

Cons

  • Slower AF
  • Large body
  • Limited lens selection vs FF

Alpha 7R VI

Pros

  • 66.8MP fully-stacked Exmor RS sensor
  • 30fps blackout-free electronic burst
  • 8K 30p and 4K 120p video
  • 8.5-stop in-body stabilization
  • 9.44M-dot HDR OLED EVF

Cons

  • Very expensive
  • Large files demand fast cards and storage
  • 8K workflow can be heavy

Full specifications

= category winner

GFX50S II
Alpha 7R VI
Resolution
51.4 MP
66.8 MP+30%
Sensor type
Medium Format Bayer CMOS
Full-Frame Stacked CMOS
Sensor size
43.8 x 32.9 mm
35.9 × 24.0 mm
AA filter
No
No
GFX50S II
Alpha 7R VI
AF system
TTL Contrast AF
Contrast Detection / Phase Detection
AF points / zones
117
7596.5× more
AF low-light limit
-6 EV
Eye AF
No
Yes
Animal / bird AF
No
Yes
Subject recognition
Human, Animal, Bird, Eye, Insect, Vehicle
GFX50S II
Alpha 7R VI
Burst (mechanical)
3 fps
Burst (electronic)
2.2 fps
30 fps13.6× more
Pre-Capture / Pre-Release
No
RAW buffer depth
35 frames
150 frames4.3× more
GFX50S II
Alpha 7R VI
Max resolution
Full HD
8K
4K max frame rate
120 fps
Max video bit rate
50 Mbps
600 Mbps12× more
Internal RAW video
No
No
Log profile
None
S-Cinetone / S-Log3
Codecs
H.264
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
GFX50S II
Alpha 7R VI
Weight
900 g
713 g−187 g less
Dimensions (W×H×D mm)
150 × 104.2 × 87.2 mm
132.7 × 96.9 × 82.9 mm
Weather sealing
Yes

Frequently asked

Quick answers generated from verified specs.

Which is better for video, GFX50S II or Alpha 7R VI?

Alpha 7R VI scores 8.0/10 versus 3.0/10 for GFX50S II — 8K recording for future-proof footage.

What's the resolution difference between the GFX50S II and Alpha 7R VI?

GFX50S II is 51.4 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.

Do the GFX50S II and Alpha 7R VI have in-body image stabilization?

GFX50S II has 6.5-stop in-body image stabilization, while alpha 7R VI has in-body image stabilization.

Which shoots faster bursts — the GFX50S II or the Alpha 7R VI?

GFX50S II reaches 3 fps mechanical. Alpha 7R VI reaches 30 fps electronic.

What's the weight difference between the GFX50S II and Alpha 7R VI?

GFX50S II weighs 900 g and Alpha 7R VI weighs 713 g, so the Alpha 7R VI is 187 g lighter.

Do the GFX50S II and Alpha 7R VI record 4K video?

GFX50S II: Full HD. Alpha 7R VI: 8K (max), 4K up to 120p.

Are the GFX50S II and Alpha 7R VI weather sealed?

GFX50S II: Yes. Alpha 7R VI: No.

Which has better battery life?

Rated battery life is 455 shots (CIPA) for the GFX50S II and 600 shots for the Alpha 7R VI, giving the Alpha 7R VI the edge.

How much does each cost?

GFX50S II launched at $3,999 and Alpha 7R VI at $4,499. The GFX50S II is $500 less.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.

Product images courtesy of Fujifilm and Sony press materials.