Fujifilm
GFX 50R
Rangefinder-style medium format body with 51.4MP and classic Fujifilm ergonomics.
$4,499
Released Sep 2018
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 3.1 years newer.
Wins
GFX 50R
Wins
Alpha 7 IV
3 categories tied
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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 50R
161 × 97 × 66 mm
775 g (1.71 lb / 27.34 oz)
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
GFX 50R is 13mm thinner than Alpha 7 IV but it is also 29mm wider.
GFX 50R is 117 g heavier than Alpha 7 IV.
Depth (front-to-back): 66mm GFX 50R · 80mm Alpha 7 IV
Sensor size, to scale
GFX 50R
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 50R: 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 50R
Dimensions (W×H×D mm)
Adds 160.7, 96.5, 66.4
Resolution
51.4 MP vs 33 MP — 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 50R
Pros
- ✓51MP medium format
- ✓Rangefinder style
- ✓Film simulations
Cons
- –Slow AF
- –Large files
- –Bulky lenses
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 50R or Alpha 7 IV?
Alpha 7 IV scores 8.0/10 versus 1.5/10 for GFX 50R — Bird AF subject recognition.
What's the resolution difference between the GFX 50R and Alpha 7 IV?
GFX 50R is 51.4 MP and Alpha 7 IV is 33 MP, so the GFX 50R captures more detail for cropping and large prints.
Do the GFX 50R and Alpha 7 IV have in-body image stabilization?
GFX 50R does not have IBIS, while alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the GFX 50R or the Alpha 7 IV?
GFX 50R reaches 3 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the GFX 50R and Alpha 7 IV?
GFX 50R weighs 775 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 117 g lighter.
Do the GFX 50R and Alpha 7 IV record 4K video?
GFX 50R: Full HD. Alpha 7 IV: 4K up to 60p.
Are the GFX 50R and Alpha 7 IV weather sealed?
GFX 50R: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 400 shots (CIPA) for the GFX 50R and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
GFX 50R launched at $4,499 and Alpha 7 IV at $2,499. The Alpha 7 IV is $2,000 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Fujifilm and Sony press materials.