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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

vs

Sony

Alpha 99 II

42MP A-mount flagship with translucent mirror, 12fps, and 5-axis IBIS for Sony/Minolta lenses.

$3,199

Launch price

Released Nov 2016

Alpha 1 II is 8.1 years newer.

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Wins

11categories

Alpha 1 II

Sports & ActionVideo & Hybrid

Wins

1categories

Alpha 99 II

WildlifePortrait

6 categories tied

Which would you choose?

TL;DR — Key differences

Alpha 1 II wins 5 categories·Alpha 99 II wins 0 categories
  • AAlpha 1 II has higher EVF resolution (9,437,184 vs 3,690,000)
  • AAlpha 1 II has higher 4K max frame rate (120 fps vs 60 fps)
  • AAlpha 1 II has higher EVF refresh rate (240 Hz vs 120 Hz)
  • AAlpha 1 II has higher IBIS effectiveness (8.5 stops vs 4.5 stops)
  • AAlpha 1 II has higher RAW buffer depth (200 frames vs 120 frames)

Key specs at a glance

Alpha 1 IIAlpha 99 II
Resolution50.1 MP42.4 MP
SensorFull FrameFull Frame
ISO max32,00025,600
Burst30 fps20 fps
4K120 fps60 fps
IBIS8.5-stop4.5-stop
Weight743 g849 g
Battery520 shots640 shots

Size and weight, to scale

Alpha 1 II front view

Alpha 1 II

136 × 97 × 83 mm

743 g (1.64 lb / 26.21 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 99 II

143 × 105 × 82 mm

849 g (1.87 lb / 29.95 oz)

Alpha 1 II is 7mm narrower and 8mm shorter than Alpha 99 II but it is also 1mm thicker.

Alpha 1 II is 106 g lighter than Alpha 99 II.

Depth (front-to-back): 83mm Alpha 1 II · 82mm Alpha 99 II

Sensor size, to scale

Alpha 1 II

35.9 × 24 mm · Full Frame

862 mm² area

Alpha 99 II

35.9 × 24 mm · Full Frame

862 mm² area

Lens ecosystem

Native lens selection

Alpha 1 II

✓ more lenses

Sony E

350+

native lenses available

80 first-party270 third-party

Alpha 99 II: mount data unavailable

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 caseAlpha 1 IIAlpha 99 II
Portrait
8.5Excellent
8.5Excellent
Sports & Action
10.0Excellent✓ wins
8.0Excellent
Video & Hybrid
9.5Excellent✓ wins
6.0Good
Landscape
9.0Excellent✓ wins
8.5Excellent
Travel
6.0Good✓ wins
5.5Fair
Wildlife
9.5Excellent✓ wins
9.0Excellent
Vlogging
5.5Fair
5.5Fair

Why pick one over the other

Reasons to choose

Alpha 1 II

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • EVF resolution

    9,437,184 vs 3,690,000 — higher is better

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I

  • Subject recognition

    Adds Insect, Car/Train, Airplane

  • 4K max frame rate

    120 fps vs 60 fps — higher is better

  • Internal RAW video

    Only Alpha 1 II supports it

  • Card types

    Adds CFexpress Type A

  • EVF refresh rate

    240 Hz vs 120 Hz — higher is better

Reasons to choose

Alpha 99 II

  • Dimensions (W×H×D mm)

    Adds 142.6, 104.8, 81.6

  • Subject recognition

    Adds Vehicle

  • Battery life (CIPA)

    640 shots vs 520 shots — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • AF points / zonesBoth 759
  • AF frame coverageBoth 94 %
  • Eye AFBoth support eye af
  • Animal / bird AFBoth support animal / bird af

Pros & cons at a glance

Editorially curated highlights and trade-offs.

Alpha 1 II

Pros

  • 50MP stacked sensor
  • 30fps blackout-free burst
  • 8K 30p video
  • Best Sony AF

Cons

  • Very expensive
  • Complex menus
  • Large files

Alpha 99 II

Pros

  • 42MP A-mount
  • 5-axis IBIS
  • 12fps
  • Huge Minolta lens library

Cons

  • A-mount declining
  • Translucent mirror system
  • Large body

Decided which one is right for you?

Compare live prices for the Alpha 1 II and Alpha 99 II at major authorized retailers.

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Full specifications

= category winner

Alpha 1 II
Alpha 99 II
Resolution
50.1 MP+18%
42.4 MP
Sensor type
Full Frame Stacked Exmor RS CMOS
Full Frame CMOS
Sensor size
35.9 × 24.0 mm
35.9 × 24.0 mm
AA filter
Yes
Yes
Alpha 1 II
Alpha 99 II
Processor
BIONZ XR + AI processing unit
BIONZ XR
Alpha 1 II
Alpha 99 II
ISO min (native)
100
100
ISO max (native)
32,000+0.3 stops
25,600
ISO max (expanded)
102,400
102,400
Alpha 1 II
Alpha 99 II
Shutter type
Mechanical + Electronic
Mechanical + Electronic
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/32000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for video, Alpha 1 II or Alpha 99 II?

Alpha 1 II scores 9.5/10 versus 6.0/10 for Alpha 99 II — 8K recording for future-proof footage.

What's the resolution difference between the Alpha 1 II and Alpha 99 II?

Alpha 1 II is 50.1 MP and Alpha 99 II is 42.4 MP, so the Alpha 1 II captures more detail for cropping and large prints.

Do the Alpha 1 II and Alpha 99 II have in-body image stabilization?

Alpha 1 II has 8.5-stop in-body image stabilization, while Alpha 99 II has 4.5-stop in-body image stabilization.

Which shoots faster bursts — the Alpha 1 II or the Alpha 99 II?

Alpha 1 II reaches 30 fps electronic. Alpha 99 II reaches 20 fps electronic.

What's the weight difference between the Alpha 1 II and Alpha 99 II?

Alpha 1 II weighs 743 g and Alpha 99 II weighs 849 g, so the Alpha 1 II is 106 g lighter.

Do the Alpha 1 II and Alpha 99 II record 4K video?

Alpha 1 II: 8K (max), 4K up to 120p. Alpha 99 II: 4K up to 60p.

Are the Alpha 1 II and Alpha 99 II weather sealed?

Alpha 1 II: Yes. Alpha 99 II: Yes.

Which has better battery life?

Rated battery life is 520 shots (CIPA) for the Alpha 1 II and 640 shots for the Alpha 99 II, giving the Alpha 99 II the edge.

How much does each cost?

Alpha 1 II launched at $6,499 and Alpha 99 II at $3,199. The Alpha 99 II is $3,300 less.

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

Add any camera to get a three-way Alpha 1 II vs Alpha 99 II vs X comparison.

Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.

Product images courtesy of Sony press materials.