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Panasonic

Lumix S1R

47MP L-mount resolution body for detail work.

$3,699

Launch price

Released Feb 2019

vs
Alpha 1 II

Sony

Alpha 1 II

50MP stacked flagship with 30fps RAW, 8K video, and Sony's fastest hybrid performance.

$6,499

Launch price

Released Nov 2024

Alpha 1 II is 5.8 years newer.

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Wins

2categories

Lumix S1R

PortraitLandscape

Wins

13categories

Alpha 1 II

Sports & ActionVideo & Hybrid

3 categories tied

Which would you choose?

TL;DR — Key differences

Lumix S1R wins 0 categories·Alpha 1 II wins 5 categories
  • BAlpha 1 II has higher RAW buffer depth (200 frames vs 40 frames)
  • BAlpha 1 II has higher AF points / zones (759 vs 225)
  • BAlpha 1 II has higher Burst (electronic) (30 fps vs 9 fps)
  • BAlpha 1 II has higher 4K max frame rate (120 fps vs 60 fps)
  • BAlpha 1 II has higher EVF refresh rate (240 Hz vs 120 Hz)

Key specs at a glance

Lumix S1RAlpha 1 II
Resolution47.3 MP50.1 MP
SensorFull FrameFull Frame
ISO max25,60032,000
Burst9 fps30 fps
4K60 fps120 fps
IBIS6-stop8.5-stop
Weight1020 g743 g
Battery380 shots520 shots

Size and weight, to scale

Lumix S1R

149 × 110 × 97 mm

1020 g (2.25 lb / 35.98 oz)

Credit card shown to scale as a size reference (ISO 7810, 85.6 × 54 mm)

Credit card

85.6 × 54 mm

for scale

Alpha 1 II front view

Alpha 1 II

136 × 97 × 83 mm

743 g (1.64 lb / 26.21 oz)

Lumix S1R is 13mm wider, 13mm taller, and 14mm thicker than Alpha 1 II.

Lumix S1R is 277 g heavier than Alpha 1 II.

Depth (front-to-back): 97mm Lumix S1R · 83mm Alpha 1 II

Sensor size, to scale

Lumix S1R

36 × 24 mm · Full Frame

864 mm² area

Alpha 1 II

35.9 × 24 mm · Full Frame

862 mm² area

Lens ecosystem

Native lens selection

Lumix S1R: mount data unavailable

Alpha 1 II

✓ 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 caseLumix S1RAlpha 1 II
Portrait
8.5Excellent
8.5Excellent
Sports & Action
5.5Fair
10.0Excellent✓ wins
Video & Hybrid
6.0Good
9.5Excellent✓ wins
Landscape
8.5Excellent
9.0Excellent✓ wins
Travel
4.5Fair
6.0Good✓ wins
Wildlife
3.0Limited
9.5Excellent✓ wins
Vlogging
5.5Fair
5.5Fair

Why pick one over the other

Reasons to choose

Lumix S1R

  • AF low-light limit

    -6 EV vs -4 EV — lower is better

  • Dimensions (W×H×D mm)

    Adds 148.9, 110, 96.7

  • Codecs

    Adds MP4, AVCHD

  • Subject recognition

    Adds Face, Eye

  • Card types

    Adds XQD

  • AF frame coverage

    100 % vs 94 % — higher is better

Reasons to choose

Alpha 1 II

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • RAW buffer depth

    200 frames vs 40 frames — higher is better

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I…

  • AF points / zones

    759 vs 225 — higher is better

  • Burst (electronic)

    30 fps vs 9 fps — higher is better

  • Subject recognition

    Adds Bird, Insect, Car/Train…

  • AA filter

    Only Alpha 1 II supports it

  • Pre-Capture / Pre-Release

    Only Alpha 1 II supports it

Both cameras share

  • ISO min (native)Both 100
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af
  • Max video bit rateBoth 150 Mbps
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)
  • Weather sealingBoth support weather sealing

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Lumix S1R

Pros

  • 47MP
  • High detail
  • L-mount

Cons

  • Contrast AF era
  • Heavy
  • Superseded

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 Lumix S1R and Alpha 1 II at major authorized retailers.

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Full specifications

= category winner

Lumix S1R
Alpha 1 II
Resolution
47.3 MP
50.1 MP+6%
Sensor type
35mm Full-Frame CMOS
Full Frame Stacked Exmor RS CMOS
Sensor size
36.0 x 24.0 mm
35.9 × 24.0 mm
AA filter
No
Yes
Lumix S1R
Alpha 1 II
Processor
Venus Engine
BIONZ XR + AI processing unit
Lumix S1R
Alpha 1 II
ISO min (native)
100
100
ISO max (native)
25,600
32,000+0.3 stops
ISO max (expanded)
51,200
102,400
Lumix S1R
Alpha 1 II
Shutter type
Focal-plane mechanical + electronic shutter
Mechanical + Electronic
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/8000 sec
1/32000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, Lumix S1R or Alpha 1 II?

Alpha 1 II scores 9.5/10 versus 3.0/10 for Lumix S1R — 30fps burst captures fleeting moments.

What's the resolution difference between the Lumix S1R and Alpha 1 II?

Lumix S1R is 47.3 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.

Do the Lumix S1R and Alpha 1 II have in-body image stabilization?

Lumix S1R has 6-stop in-body image stabilization, while Alpha 1 II has 8.5-stop in-body image stabilization.

Which shoots faster bursts — the Lumix S1R or the Alpha 1 II?

Lumix S1R reaches 9 fps electronic. Alpha 1 II reaches 30 fps electronic.

What's the weight difference between the Lumix S1R and Alpha 1 II?

Lumix S1R weighs 1020 g and Alpha 1 II weighs 743 g, so the Alpha 1 II is 277 g lighter.

Do the Lumix S1R and Alpha 1 II record 4K video?

Lumix S1R: 4K up to 60p. Alpha 1 II: 8K (max), 4K up to 120p.

Are the Lumix S1R and Alpha 1 II weather sealed?

Lumix S1R: Yes. Alpha 1 II: Yes.

Which has better battery life?

Rated battery life is 380 shots (CIPA) for the Lumix S1R and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.

How much does each cost?

Lumix S1R launched at $3,699 and Alpha 1 II at $6,499. The Lumix S1R is $2,800 less.

Can't decide between two? Compare a third camera.

Add any camera to get a three-way Lumix S1R 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 Panasonic and Sony press materials.