Fujifilm
GFX 50S
First-generation GFX medium format body with 51.4MP files and modular pro ergonomics.
$6,499
Released Sep 2016
Sony
Alpha 1 II
50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.
$6,499
Released Nov 2024
Alpha 1 II is 8.2 years newer.
Wins
GFX 50S
Wins
Alpha 1 II
2 categories tied
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TL;DR — Key differences
- BAlpha 1 II has higher IBIS effectiveness (8.5 stops vs 0 stops)
- BAlpha 1 II has higher RAW buffer depth (200 frames vs 13 frames)
- BAlpha 1 II has higher Burst (electronic) (30 fps vs 3 fps)
- BAlpha 1 II has higher AF points / zones (759 vs 117)
- BAlpha 1 II has higher Max video bit rate (150 Mbps vs 36 Mbps)
Key specs at a glance
Size and weight, to scale
GFX 50S
148 × 94 × 91 mm
920 g (2.03 lb / 32.45 oz)
Alpha 1 II
136 × 97 × 83 mm
743 g (1.64 lb / 26.21 oz)
GFX 50S is 3mm shorter than Alpha 1 II but it is also 11mm wider and 9mm thicker.
GFX 50S is 177 g heavier than Alpha 1 II.
Depth (front-to-back): 91mm GFX 50S · 83mm Alpha 1 II
Sensor size, to scale
GFX 50S
43.8 × 32.9 mm · Medium Format
1441 mm² area
Alpha 1 II
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
GFX 50S: mount data unavailable
Alpha 1 II
✓ more lensesSony E
350+
native lenses available
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
Why pick one over the other
Reasons to choose
GFX 50S
Dimensions (W×H×D mm)
Adds 147.5, 94.2, 91.4
Resolution
51.4 MP vs 50.1 MP — higher is better
Reasons to choose
Alpha 1 II
Subject recognition
Adds Human, Animal, Bird…
IBIS effectiveness
8.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 136.1, 96.9, 82.9
RAW buffer depth
200 frames vs 13 frames — higher is better
Burst (electronic)
30 fps vs 3 fps — higher is better
AF points / zones
759 vs 117 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Max video bit rate
150 Mbps vs 36 Mbps — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Bluetooth — Both support bluetooth
Pros & cons at a glance
Editorially curated highlights and trade-offs.
GFX 50S
Pros
- ✓51MP medium format
- ✓Modular EVF system
- ✓Excellent image quality
Cons
- –Slow contrast AF
- –Large body
- –No IBIS
Alpha 1 II
Pros
- ✓50MP stacked sensor
- ✓30fps blackout-free burst
- ✓8K 30p video
- ✓Best Sony AF
Cons
- –Very expensive
- –Complex menus
- –Large files
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, GFX 50S or Alpha 1 II?
Alpha 1 II scores 9.5/10 versus 1.5/10 for GFX 50S — 30fps burst captures fleeting moments.
What's the resolution difference between the GFX 50S and Alpha 1 II?
GFX 50S is 51.4 MP and Alpha 1 II is 50.1 MP, so the GFX 50S captures more detail for cropping and large prints.
Do the GFX 50S and Alpha 1 II have in-body image stabilization?
GFX 50S does not have IBIS, while alpha 1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the GFX 50S or the Alpha 1 II?
GFX 50S reaches 3 fps electronic. Alpha 1 II reaches 30 fps electronic.
What's the weight difference between the GFX 50S and Alpha 1 II?
GFX 50S weighs 920 g and Alpha 1 II weighs 743 g, so the Alpha 1 II is 177 g lighter.
Do the GFX 50S and Alpha 1 II record 4K video?
GFX 50S: Full HD. Alpha 1 II: 8K (max), 4K up to 120p.
Are the GFX 50S and Alpha 1 II weather sealed?
GFX 50S: Yes. Alpha 1 II: Yes.
Which has better battery life?
Rated battery life is 400 shots (CIPA) for the GFX 50S and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.
How much does each cost?
Both launched at $6,499.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.