Fujifilm
GFX100RF
Fixed-lens 102MP medium format rangefinder-style camera with a 35mm f/4 lens and built-in ND filter.
$4,899
Launch priceReleased Mar 2025
Sony
Alpha 1 II
50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.
$6,499
Launch priceReleased Nov 2024
GFX100RF is 4 months newer.
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Wins
GFX100RF
Wins
Alpha 1 II
1 categories tied
Which would you choose?
TL;DR — Key differences
- BAlpha 1 II has higher IBIS effectiveness (8.5 stops vs 0 stops)
- BAlpha 1 II has higher Burst (electronic) (30 fps vs 3 fps)
- AGFX100RF has higher Max video bit rate (720 Mbps vs 150 Mbps)
- BAlpha 1 II has higher RAW buffer depth (200 frames vs 45 frames)
- BAlpha 1 II has higher 4K max frame rate (120 fps vs 30 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
GFX100RF
134 × 90 × 77 mm
735 g (1.62 lb / 25.93 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 1 II
136 × 97 × 83 mm
743 g (1.64 lb / 26.21 oz)
GFX100RF is 3mm narrower, 7mm shorter, and 6mm thinner than Alpha 1 II.
GFX100RF is 8 g lighter than Alpha 1 II.
Depth (front-to-back): 77mm GFX100RF · 83mm Alpha 1 II
Back view, to scale
Width × Height — same proportions as the front of the body.
GFX100RF
134 × 90 mm
Credit card
85.6 × 54 mm
Alpha 1 II
136 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
GFX100RF
134 × 77 mm
Credit card
85.6 × 54 mm
Alpha 1 II
136 × 83 mm
Sensor size, to scale
GFX100RF
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
GFX100RF: 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
GFX100RF
Dimensions (W×H×D mm)
Adds 133.5, 90.4, 76.5
Max video bit rate
720 Mbps vs 150 Mbps — higher is better
Card types
Adds SDXC V90, SSD via USB
Codecs
Adds Apple ProRes 422 HQ, Apple ProRes 422, Apple ProRes 422 LT
Resolution
102 MP vs 50.1 MP — higher is better
Subject recognition
Adds Automobile, Motorcycle/Bike, Train
Battery life (CIPA)
820 shots vs 520 shots — higher is better
ISO min (native)
80 vs 100 — lower is better
Reasons to choose
Alpha 1 II
AF low-light limit
-4 EV vs -3 EV — lower is better
IBIS effectiveness
8.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 136.1, 96.9, 82.9
Burst (electronic)
30 fps vs 3 fps — higher is better
RAW buffer depth
200 frames vs 45 frames — higher is better
4K max frame rate
120 fps vs 30 fps — higher is better
ISO max (native)
32,000 vs 12,800 — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Weather sealing — Both support weather sealing
- ✓Card slots — Both 2
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
Pros & cons at a glance
Editorially curated highlights and trade-offs.
GFX100RF
Pros
- ✓102MP medium format image quality
- ✓Compact fixed-lens GFX design
- ✓Built-in 4-stop ND
- ✓High-resolution EVF
Cons
- –Fixed 35mm f/4 lens
- –No IBIS
- –Premium niche camera
Alpha 1 II
Pros
- ✓50MP stacked sensor
- ✓30fps blackout-free burst
- ✓8K 30p video
- ✓Best Sony AF
Cons
- –Very expensive
- –Complex menus
- –Large files
Decided which one is right for you?
Compare live prices for the GFX100RF and Alpha 1 II at major authorized retailers.
Fujifilm GFX100RF
Sony Alpha 1 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for sports, GFX100RF or Alpha 1 II?
Alpha 1 II scores 10.0/10 versus 4.0/10 for GFX100RF — 30fps burst — pro-level action capture.
What's the resolution difference between the GFX100RF and Alpha 1 II?
GFX100RF is 102 MP and Alpha 1 II is 50.1 MP, so the GFX100RF captures more detail for cropping and large prints.
Do the GFX100RF and Alpha 1 II have in-body image stabilization?
GFX100RF does not have IBIS, while Alpha 1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the GFX100RF or the Alpha 1 II?
GFX100RF reaches 6 fps mechanical. Alpha 1 II reaches 30 fps electronic.
What's the weight difference between the GFX100RF and Alpha 1 II?
GFX100RF weighs 735 g and Alpha 1 II weighs 743 g, so the GFX100RF is 8 g lighter.
Do the GFX100RF and Alpha 1 II record 4K video?
GFX100RF: 4K up to 30p. Alpha 1 II: 8K (max), 4K up to 120p.
Are the GFX100RF and Alpha 1 II weather sealed?
GFX100RF: Yes. Alpha 1 II: Yes.
Which has better battery life?
Rated battery life is 820 shots (CIPA) for the GFX100RF and 520 shots for the Alpha 1 II, giving the GFX100RF the edge.
How much does each cost?
GFX100RF launched at $4,899 and Alpha 1 II at $6,499. The GFX100RF is $1,600 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way GFX100RF vs Alpha 1 II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed July 2026.
Product images courtesy of Fujifilm and Sony press materials.