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Canon

EOS-1D X Mark III

Canon flagship DSLR for sports and news with 20fps and legendary reliability.

$6,499

Launch price

Released Feb 2020

vs

Nikon

D3500

Entry DSLR that introduced millions to interchangeable-lens photography.

$449

Launch price

Released Aug 2018

EOS-1D X Mark III is 1.4 years newer.

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Wins

8categories

EOS-1D X Mark III

WildlifeSports & Action

Wins

4categories

D3500

Travel

1 categories tied

Which would you choose?

TL;DR — Key differences

EOS-1D X Mark III wins 5 categories·D3500 wins 0 categories
  • AEOS-1D X Mark III has higher 4K max frame rate (60 fps vs 0 fps)
  • AEOS-1D X Mark III has higher IBIS effectiveness (8 stops vs 0 stops)
  • AEOS-1D X Mark III has higher AF points / zones (191 vs 11)
  • AEOS-1D X Mark III has higher ISO max (native) (102,400 vs 25,600)
  • AEOS-1D X Mark III has higher Burst (electronic) (20 fps vs 5 fps)

Key specs at a glance

EOS-1D X Mark IIID3500
Resolution20.1 MP24.2 MP
SensorFull FrameAPS-C
ISO max102,40025,600
Burst20 fps5 fps
4K60 fps
IBIS8-stopNo
Weight720 g365 g
Battery520 shots1550 shots

Size and weight, to scale

EOS-1D X Mark III

138 × 98 × 88 mm

720 g (1.59 lb / 25.40 oz)

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

Credit card

85.6 × 54 mm

for scale

D3500

124 × 97 × 70 mm

365 g (0.80 lb / 12.88 oz)

EOS-1D X Mark III is 14mm wider, 1mm taller, and 19mm thicker than D3500.

EOS-1D X Mark III is 355 g heavier than D3500.

Depth (front-to-back): 88mm EOS-1D X Mark III · 70mm D3500

Sensor size, to scale

EOS-1D X Mark III

36 × 24 mm · Full Frame

864 mm² area

D3500

23.5 × 15.6 mm · APS-C

367 mm² area

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

Lens ecosystem

Native lens selection

EOS-1D X Mark III

✓ more lenses

Canon EF

300+

native lenses available

100 first-party200 third-party

D3500

Nikon F

270+

native lenses available

90 first-party180 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-1D X Mark IIID3500
Portrait
6.5Good✓ wins
3.5Limited
Sports & Action
7.5Good✓ wins
1.0Limited
Video & Hybrid
6.0Good✓ wins
0.0Limited
Landscape
5.5Fair✓ wins
1.5Limited
Travel
6.0Good
6.0Good
Wildlife
10.0Excellent✓ wins
1.0Limited
Vlogging
5.5Fair✓ wins
2.0Limited

Why pick one over the other

Reasons to choose

EOS-1D X Mark III

  • AF low-light limit

    -4 EV vs -1 EV — lower is better

  • Subject recognition

    Adds Human, Animal, Bird…

  • 4K max frame rate

    60 fps vs 0 fps — higher is better

  • Codecs

    Adds RAW, H.265, H.264

  • IBIS effectiveness

    8 stops vs 0 stops — higher is better

  • Dimensions (W×H×D mm)

    Adds 138, 98, 88

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • AF points / zones

    191 vs 11 — higher is better

Reasons to choose

D3500

  • Codecs

    Adds H.264/AVC

  • Dimensions (W×H×D mm)

    Adds 124, 97, 69.5

  • Card types

    Adds SD UHS-I

  • Battery life (CIPA)

    1550 shots vs 520 shots — higher is better

  • Weight

    365 g vs 720 g — lower is better

  • Resolution

    24.2 MP vs 20.1 MP — higher is better

  • EVF magnification

    0.85 × vs 0.78 × — higher is better

Both cameras share

  • AA filterBoth support aa filter
  • ISO min (native)Both 100
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

EOS-1D X Mark III

Pros

  • 20fps DSLR
  • Pro build
  • Dual CFexpress
  • Excellent AF

Cons

  • DSLR platform
  • 20MP
  • Very heavy

D3500

Pros

  • Very affordable
  • Long battery life
  • Lightweight

Cons

  • No 4K
  • Basic AF
  • Discontinued

Decided which one is right for you?

Compare live prices for the EOS-1D X Mark III and D3500 at major authorized retailers.

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Full specifications

= category winner

EOS-1D X Mark III
D3500
Resolution
20.1 MP
24.2 MP+20%
Sensor type
Full Frame CMOS
DX-format CMOS
Sensor size
36.0 × 24.0 mm
23.5 × 15.6 mm
AA filter
Yes
Yes
EOS-1D X Mark III
D3500
Processor
DIGIC X
EXPEED 4
EOS-1D X Mark III
D3500
ISO min (native)
100
100
ISO max (native)
102,400+2 stops
25,600
ISO max (expanded)
819,200
25,600
EOS-1D X Mark III
D3500
Shutter type
Mechanical + Electronic
Mechanical focal-plane
Max mechanical speed
1/8000 sec
1/4000 sec
Max electronic speed
1/32000 sec
N/A

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, EOS-1D X Mark III or D3500?

EOS-1D X Mark III scores 10.0/10 versus 1.0/10 for D3500 — 20fps burst captures fleeting moments.

What's the resolution difference between the EOS-1D X Mark III and D3500?

EOS-1D X Mark III is 20.1 MP and D3500 is 24.2 MP, so the D3500 captures more detail for cropping and large prints.

Do the EOS-1D X Mark III and D3500 have in-body image stabilization?

EOS-1D X Mark III has 8-stop in-body image stabilization, while D3500 does not have IBIS.

Which shoots faster bursts — the EOS-1D X Mark III or the D3500?

EOS-1D X Mark III reaches 20 fps electronic. D3500 reaches 5 fps electronic.

What's the weight difference between the EOS-1D X Mark III and D3500?

EOS-1D X Mark III weighs 720 g and D3500 weighs 365 g, so the D3500 is 355 g lighter.

Do the EOS-1D X Mark III and D3500 record 4K video?

EOS-1D X Mark III: 4K up to 60p. D3500: Full HD.

Are the EOS-1D X Mark III and D3500 weather sealed?

EOS-1D X Mark III: Yes. D3500: No.

Which has better battery life?

Rated battery life is 520 shots (CIPA) for the EOS-1D X Mark III and 1,550 shots for the D3500, giving the D3500 the edge.

How much does each cost?

EOS-1D X Mark III launched at $6,499 and D3500 at $449. The D3500 is $6,050 less.

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

Add any camera to get a three-way EOS-1D X Mark III vs D3500 vs X comparison.

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