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Canon

EOS R100

Entry-level 24MP APS-C RF-mount camera with a small body, EVF, and simple stills-first feature set.

$479

Launch price

Released May 2023

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 1.5 years newer.

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Wins

3categories

EOS R100

Travel

Wins

13categories

Alpha 1 II

Sports & ActionVideo & Hybrid

2 categories tied

Which would you choose?

TL;DR — Key differences

EOS R100 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 RAW buffer depth (200 frames vs 6 frames)
  • AEOS R100 has higher AF points / zones (3975 vs 759)
  • BAlpha 1 II has higher 4K max frame rate (120 fps vs 24 fps)
  • BAlpha 1 II has higher Burst (electronic) (30 fps vs 6.5 fps)

Key specs at a glance

EOS R100Alpha 1 II
Resolution24.1 MP50.1 MP
Sensor22.3 × 14.9 mmFull Frame
ISO max12,80032,000
Burst6.5 fps30 fps
4K24 fps120 fps
IBISNo8.5-stop
Weight356 g743 g
Battery430 shots520 shots

Size and weight, to scale

EOS R100

116 × 86 × 69 mm

356 g (0.78 lb / 12.56 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)

EOS R100 is 20mm narrower, 11mm shorter, and 14mm thinner than Alpha 1 II.

EOS R100 is 387 g lighter than Alpha 1 II.

Depth (front-to-back): 69mm EOS R100 · 83mm Alpha 1 II

Sensor size, to scale

EOS R100

22.3 × 14.9 mm · APS-C

332 mm² area

Alpha 1 II

35.9 × 24 mm · Full Frame

862 mm² area

2.6× larger sensor area = shallower depth of field and better low-light performance.

Lens ecosystem

Native lens selection

EOS R100

Canon RF

105+

native lenses available

45 first-party60 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 caseEOS R100Alpha 1 II
Portrait
4.0Fair
8.5Excellent✓ wins
Sports & Action
2.5Limited
10.0Excellent✓ wins
Video & Hybrid
2.5Limited
9.5Excellent✓ wins
Landscape
1.5Limited
9.0Excellent✓ wins
Travel
6.0Good
6.0Good
Wildlife
0.0Limited
9.5Excellent✓ wins
Vlogging
3.5Limited
5.5Fair✓ wins

Why pick one over the other

Reasons to choose

EOS R100

  • Dimensions (W×H×D mm)

    Adds 116.3, 85.5, 68.8

  • Card types

    Adds SD UHS-I

  • AF points / zones

    3975 vs 759 — higher is better

  • Weight

    356 g vs 743 g — lower is better

  • EVF magnification

    0.95 × vs 0.9 × — higher is better

Reasons to choose

Alpha 1 II

  • IBIS effectiveness

    8.5 stops vs 0 stops — higher is better

  • Dimensions (W×H×D mm)

    Adds 136.1, 96.9, 82.9

  • Card types

    Adds CFexpress Type A, SD UHS-II

  • RAW buffer depth

    200 frames vs 6 frames — higher is better

  • Subject recognition

    Adds Animal, Bird, Insect…

  • 4K max frame rate

    120 fps vs 24 fps — higher is better

  • Codecs

    Adds XAVC HS, XAVC S, XAVC S-I…

  • Burst (electronic)

    30 fps vs 6.5 fps — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • Eye AFBoth support eye af
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

EOS R100

Pros

  • Very low entry price for Canon RF
  • Compact and lightweight body
  • Built-in EVF
  • Good image quality for beginners

Cons

  • Fixed non-touch LCD
  • Older DIGIC 8 processor
  • 4K video is cropped and limited
  • No in-body stabilization

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 EOS R100 and Alpha 1 II at major authorized retailers.

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Full specifications

= category winner

EOS R100
Alpha 1 II
Resolution
24.1 MP
50.1 MP2.1× more
Sensor type
APS-C CMOS
Full Frame Stacked Exmor RS CMOS
Sensor size
22.3 × 14.9 mm
35.9 × 24.0 mm
AA filter
Yes
Yes
EOS R100
Alpha 1 II
Processor
DIGIC 8
BIONZ XR + AI processing unit
EOS R100
Alpha 1 II
ISO min (native)
100
100
ISO max (native)
12,800
32,000+1.3 stops
ISO max (expanded)
25,600
102,400
EOS R100
Alpha 1 II
Shutter type
Electronic 1st Curtain
Mechanical + Electronic
Max mechanical speed
1/4000 sec
1/8000 sec
Max electronic speed
1/4000 sec
1/32000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, EOS R100 or Alpha 1 II?

Alpha 1 II scores 9.5/10 versus 0.0/10 for EOS R100 — 30fps burst captures fleeting moments.

What's the resolution difference between the EOS R100 and Alpha 1 II?

EOS R100 is 24.1 MP and Alpha 1 II is 50.1 MP, so the Alpha 1 II captures more detail for cropping and large prints.

Do the EOS R100 and Alpha 1 II have in-body image stabilization?

EOS R100 does not have IBIS, while Alpha 1 II has 8.5-stop in-body image stabilization.

Which shoots faster bursts — the EOS R100 or the Alpha 1 II?

EOS R100 reaches 6.5 fps electronic. Alpha 1 II reaches 30 fps electronic.

What's the weight difference between the EOS R100 and Alpha 1 II?

EOS R100 weighs 356 g and Alpha 1 II weighs 743 g, so the EOS R100 is 387 g lighter.

Do the EOS R100 and Alpha 1 II record 4K video?

EOS R100: 4K up to 24p. Alpha 1 II: 8K (max), 4K up to 120p.

Are the EOS R100 and Alpha 1 II weather sealed?

EOS R100: No. Alpha 1 II: Yes.

Which has better battery life?

Rated battery life is 430 shots (CIPA) for the EOS R100 and 520 shots for the Alpha 1 II, giving the Alpha 1 II the edge.

How much does each cost?

EOS R100 launched at $479 and Alpha 1 II at $6,499. The EOS R100 is $6,020 less.

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

Add any camera to get a three-way EOS R100 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 Canon and Sony press materials.