Fujifilm
GFX 50S
First-generation GFX medium format body with 51.4MP files and modular pro ergonomics.
$6,499
Released Sep 2016
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Released Oct 2021
Alpha 7 IV is 5.1 years newer.
Wins
GFX 50S
Wins
Alpha 7 IV
3 categories tied
Check current prices
Search these camera bodies at major authorized retailers to check current discounts, bundled lenses, and certified refurbished deals:
TL;DR — Key differences
- BAlpha 7 IV has higher IBIS effectiveness (5.5 stops vs 0 stops)
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 13 frames)
- BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 36 Mbps)
- BAlpha 7 IV has higher AF points / zones (759 vs 117)
- BAlpha 7 IV has higher ISO max (native) (51,200 vs 12,800)
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 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
GFX 50S is 2mm shorter than Alpha 7 IV but it is also 16mm wider and 12mm thicker.
GFX 50S is 262 g heavier than Alpha 7 IV.
Depth (front-to-back): 91mm GFX 50S · 80mm Alpha 7 IV
Sensor size, to scale
GFX 50S
43.8 × 32.9 mm · Medium Format
1441 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 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 7 IV
✓ 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 33 MP — higher is better
EVF magnification
0.85 × vs 0.78 × — higher is better
EVF resolution
3,690,000 vs 3,686,400 — higher is better
Reasons to choose
Alpha 7 IV
Subject recognition
Adds Human, Animal, Bird…
IBIS effectiveness
5.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
RAW buffer depth
828 frames vs 13 frames — higher is better
Max video bit rate
600 Mbps vs 36 Mbps — higher is better
AF points / zones
759 vs 117 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
ISO max (native)
51,200 vs 12,800 — higher is better
Both cameras share
- ✓ISO min (native) — Both 100
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
- ✓EVF refresh rate — Both 120 Hz
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
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 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, GFX 50S or Alpha 7 IV?
Alpha 7 IV scores 8.0/10 versus 1.5/10 for GFX 50S — Bird AF subject recognition.
What's the resolution difference between the GFX 50S and Alpha 7 IV?
GFX 50S is 51.4 MP and Alpha 7 IV is 33 MP, so the GFX 50S captures more detail for cropping and large prints.
Do the GFX 50S and Alpha 7 IV have in-body image stabilization?
GFX 50S does not have IBIS, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the GFX 50S or the Alpha 7 IV?
GFX 50S reaches 3 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the GFX 50S and Alpha 7 IV?
GFX 50S weighs 920 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 262 g lighter.
Do the GFX 50S and Alpha 7 IV record 4K video?
GFX 50S: Full HD. Alpha 7 IV: 4K up to 60p.
Are the GFX 50S and Alpha 7 IV weather sealed?
GFX 50S: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 400 shots (CIPA) for the GFX 50S and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
GFX 50S launched at $6,499 and Alpha 7 IV at $2,499. The Alpha 7 IV is $4,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.