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Nikon

D850

Legendary 45MP DSLR still favored by landscape and studio photographers.

$3,299

Released Aug 2017

vs
Alpha 1 II

Sony

Alpha 1 II

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

$6,499

Released Nov 2024

Alpha 1 II is 7.3 years newer.

Wins

2categories

D850

Landscape

Wins

9categories

Alpha 1 II

Video & HybridWildlife

2 categories tied

TL;DR — Key differences

D850 wins 1 categories·Alpha 1 II wins 4 categories
  • BAlpha 1 II has higher IBIS effectiveness (8.5 stops vs 0 stops)
  • BAlpha 1 II has higher AF points / zones (759 vs 153)
  • BAlpha 1 II has higher Burst (electronic) (30 fps vs 7 fps)
  • BAlpha 1 II has higher 4K max frame rate (120 fps vs 30 fps)
  • AD850 has higher Battery life (CIPA) (1840 shots vs 520 shots)

Key specs at a glance

D850Alpha 1 II
Resolution45.7 MP50.1 MP
SensorFull FrameFull Frame
ISO max25,60032,000
Burst7 fps30 fps
4K30 fps120 fps
IBISNo8.5-stop
Weight915 g743 g
Battery1840 shots520 shots

Size and weight, to scale

D850

146 × 124 × 79 mm

915 g (2.02 lb / 32.28 oz)

Alpha 1 II front view

Alpha 1 II

136 × 97 × 83 mm

743 g (1.64 lb / 26.21 oz)

D850 is 4mm thinner than Alpha 1 II but it is also 10mm wider and 27mm taller.

D850 is 172 g heavier than Alpha 1 II.

Depth (front-to-back): 79mm D850 · 83mm Alpha 1 II

Sensor size, to scale

D850

35.9 × 23.9 mm · Full Frame

858 mm² area

Alpha 1 II

35.9 × 24 mm · Full Frame

862 mm² area

Lens ecosystem

Native lens selection

D850

Nikon F

270+

native lenses available

90 first-party180 third-party

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 caseD850Alpha 1 II
Portrait
5.5Fair
8.5Excellent✓ wins
Sports & Action
1.5Limited
9.0Excellent✓ wins
Video & Hybrid
3.0Limited
9.5Excellent✓ wins
Landscape
8.5Excellent
9.0Excellent✓ wins
Travel
4.5Fair
6.0Good✓ wins
Wildlife
1.5Limited
9.5Excellent✓ wins
Vlogging
1.5Limited
5.5Fair✓ wins

Why pick one over the other

Reasons to choose

D850

  • Codecs

    Adds H.264/AVC

  • Dimensions (W×H×D mm)

    Adds 146, 124, 78.5

  • Battery life (CIPA)

    1840 shots vs 520 shots — higher is better

  • Card types

    Adds XQD

  • ISO min (native)

    64 vs 100 — lower is better

Reasons to choose

Alpha 1 II

  • Subject recognition

    Adds Human, Animal, Bird…

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I…

  • IBIS effectiveness

    8.5 stops vs 0 stops — higher is better

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • AF points / zones

    759 vs 153 — higher is better

  • Burst (electronic)

    30 fps vs 7 fps — higher is better

  • 4K max frame rate

    120 fps vs 30 fps — higher is better

  • AA filter

    Only Alpha 1 II supports it

Both cameras share

  • Weather sealingBoth support weather sealing
  • Card slotsBoth 2
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth
  • Microphone jack (3.5mm)Both support microphone jack (3.5mm)

Pros & cons at a glance

Editorially curated highlights and trade-offs.

D850

Pros

  • 45MP DSLR classic
  • Excellent dynamic range
  • Huge F-mount lens library

Cons

  • DSLR mirror system
  • Heavy
  • No modern mirrorless AF

Alpha 1 II

Pros

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

Cons

  • Very expensive
  • Complex menus
  • Large files

Full specifications

= category winner

D850
Alpha 1 II
Resolution
45.7 MP
50.1 MP+10%
Sensor type
Full Frame BSI-CMOS
Full Frame Stacked Exmor RS CMOS
Sensor size
35.9 × 23.9 mm
35.9 × 24.0 mm
AA filter
No
Yes
D850
Alpha 1 II
AF system
Multi-CAM 20K phase-detect AF
Fast Hybrid AF (phase-detection / contrast-detection)
AF points / zones
153
7595× more
AF frame coverage
94 %
AF low-light limit
-4 EV
-4 EV
Eye AF
No
Yes
Animal / bird AF
No
Yes
Subject recognition
Human, Animal, Bird, Insect, Car/Train, Airplane
D850
Alpha 1 II
Burst (mechanical)
7 fps
10 fps+43%
Burst (electronic)
7 fps
30 fps4.3× more
Pre-Capture / Pre-Release
No
Yes
RAW buffer depth
200 frames
D850
Alpha 1 II
Max resolution
4K UHD
8K
4K max frame rate
30 fps
120 fps4× more
Max video bit rate
150 Mbps
Internal RAW video
No
Yes
Log profile
S-Log3 / HLG / S-Cinetone
Codecs
H.264/AVC
XAVC HS, XAVC S, XAVC S-I, H.265, H.264
D850
Alpha 1 II
Weight
915 g
743 g−172 g less
Dimensions (W×H×D mm)
146 × 124 × 78.5 mm
136.1 × 96.9 × 82.9 mm
Weather sealing
Yes
Yes

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, D850 or Alpha 1 II?

Alpha 1 II scores 9.5/10 versus 1.5/10 for D850 — 30fps burst captures fleeting moments.

What's the resolution difference between the D850 and Alpha 1 II?

D850 is 45.7 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.

Do the D850 and Alpha 1 II have in-body image stabilization?

D850 does not have IBIS, while alpha 1 II has 8.5-stop in-body image stabilization.

Which shoots faster bursts — the D850 or the Alpha 1 II?

D850 reaches 7 fps electronic. Alpha 1 II reaches 30 fps electronic.

What's the weight difference between the D850 and Alpha 1 II?

D850 weighs 915 g and Alpha 1 II weighs 743 g, so the Alpha 1 II is 172 g lighter.

Do the D850 and Alpha 1 II record 4K video?

D850: 4K up to 30p. Alpha 1 II: 8K (max), 4K up to 120p.

Are the D850 and Alpha 1 II weather sealed?

D850: Yes. Alpha 1 II: Yes.

Which has better battery life?

Rated battery life is 1,840 shots (CIPA) for the D850 and 520 shots for the Alpha 1 II, giving the D850 the edge.

How much does each cost?

D850 launched at $3,299 and Alpha 1 II at $6,499. The D850 is $3,200 less.

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

Product images courtesy of Nikon and Sony press materials.