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Blackmagic

URSA Mini Pro 12K

12K Super 35 cinema camera with interchangeable PL mount and BRAW recording.

$9,995

Launch price

Released Jul 2020

vs
GR IVx

Ricoh

GR IVx

40mm-equivalent GR IV sibling with a newly designed 26.1mm f/2.8 lens, 25.74MP APS-C sensor, 5-axis SR, 4K video, 53GB internal storage, and pocket street-camera handling. Winter 2026 planned.

$1,499

Launch price

Released Dec 2026

GR IVx is 6.4 years newer.

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Wins

7categories

URSA Mini Pro 12K

WildlifeVideo & Hybrid

Wins

3categories

GR IVx

Portrait

1 categories tied

Which would you choose?

TL;DR — Key differences

URSA Mini Pro 12K wins 3 categories·GR IVx wins 2 categories
  • BGR IVx has higher AF points / zones (49 vs 0)
  • AURSA Mini Pro 12K has higher Burst (electronic) (30 fps vs 4 fps)
  • BGR IVx has higher ISO max (native) (204,800 vs 51,200)
  • AURSA Mini Pro 12K has higher 4K max frame rate (120 fps vs 30 fps)
  • AURSA Mini Pro 12K has higher Max video bit rate (600 Mbps vs 150 Mbps)

Key specs at a glance

URSA Mini Pro 12KGR IVx
Resolution80 MP25.74 MP
SensorAPS-CAPS-C
ISO max51,200204,800
Burst30 fps4 fps
4K120 fps30 fps
IBIS8-stopYes
Weight520 g265 g
Battery520 shots250 shots

Size and weight, to scale

URSA Mini Pro 12K

138 × 98 × 88 mm

520 g (1.15 lb / 18.34 oz)

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

Credit card

85.6 × 54 mm

for scale

GR IVx front view

GR IVx

109 × 61 × 33 mm

265 g (0.58 lb / 9.35 oz)

URSA Mini Pro 12K is 29mm wider, 37mm taller, and 55mm thicker than GR IVx.

URSA Mini Pro 12K is 255 g heavier than GR IVx.

Depth (front-to-back): 88mm URSA Mini Pro 12K · 33mm GR IVx

Sensor size, to scale

URSA Mini Pro 12K

23.5 × 15.6 mm · APS-C

367 mm² area

GR IVx

23.3 × 15.5 mm · APS-C

361 mm² area

Use-case scoring

Which one for what?

Algorithmic scores from verified specs · 10 = best in class

Use caseURSA Mini Pro 12KGR IVx
Portrait
7.5Good✓ wins
6.5Good
Sports & Action
9.0Excellent✓ wins
1.0Limited
Video & Hybrid
9.5Excellent✓ wins
4.0Fair
Landscape
7.0Good✓ wins
2.5Limited
Travel
7.0Good✓ wins
5.5Fair
Wildlife
10.0Excellent✓ wins
1.0Limited
Vlogging
7.0Good✓ wins
5.5Fair

Why pick one over the other

Reasons to choose

URSA Mini Pro 12K

  • Subject recognition

    Adds Human, Animal, Bird…

  • Codecs

    Adds H.265, H.264, ProRes

  • Dimensions (W×H×D mm)

    Adds 138, 98, 88

  • Card types

    Adds CFexpress Type B, SD UHS-II

  • Burst (electronic)

    30 fps vs 4 fps — higher is better

  • 4K max frame rate

    120 fps vs 30 fps — higher is better

  • Max video bit rate

    600 Mbps vs 150 Mbps — higher is better

  • Resolution

    80 MP vs 25.74 MP — higher is better

Reasons to choose

GR IVx

  • AF points / zones

    49 vs 0 — higher is better

  • Subject recognition

    Adds Face, Eye

  • Codecs

    Adds MPEG-4 AVC/H.264, MOV

  • Dimensions (W×H×D mm)

    Adds 109.4, 61.1, 33.4

  • Card types

    Adds microSD, microSDHC, microSDXC UHS-I

  • ISO max (native)

    204,800 vs 51,200 — higher is better

  • Weight

    265 g vs 520 g — lower is better

Both cameras share

  • ISO min (native)Both 100
  • Eye AFBoth support eye af
  • In-body stabilization (IBIS)Both support in-body stabilization (ibis)
  • TouchscreenBoth support touchscreen
  • Wi-FiBoth support wi-fi
  • BluetoothBoth support bluetooth

Pros & cons at a glance

Editorially curated highlights and trade-offs.

URSA Mini Pro 12K

Pros

  • 12K BRAW
  • Pro cinema workflow
  • Interchangeable mount

Cons

  • Very expensive
  • Huge files
  • Not handheld friendly

GR IVx

Pros

  • New 26.1mm f/2.8 GR lens (40mm equiv.)
  • GR IV 25.74MP APS-C + 5-axis SR
  • 4K 30p/24p and 53GB built-in storage
  • Snap focus, 50/71mm crops, 2-stop ND
  • Pocketable 265g body

Cons

  • Price not yet announced (listed at GR IV $1,499)
  • Winter 2026 or later — still in development as of Aug 2026
  • No built-in EVF
  • Fixed 40mm-equiv. lens

Decided which one is right for you?

Compare live prices for the URSA Mini Pro 12K and GR IVx at major authorized retailers.

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Full specifications

= category winner

URSA Mini Pro 12K
GR IVx
Resolution
80 MP3.1× more
25.74 MP
Sensor type
APS-C CMOS
APS-C CMOS
Sensor size
23.5 × 15.6 mm
23.3 x 15.5 mm
AA filter
No
No
URSA Mini Pro 12K
GR IVx
Aperture
F2.8-F16
Focal length (35mm equiv.)
40 mm
URSA Mini Pro 12K
GR IVx
Processor
Image processor
GR ENGINE 7
URSA Mini Pro 12K
GR IVx
ISO min (native)
100
100
ISO max (native)
51,200
204,800+2 stops
ISO max (expanded)
102,400
204,800
URSA Mini Pro 12K
GR IVx
Shutter type
Mechanical + Electronic
Leaf shutter
Max mechanical speed
1/8000 sec
1/4000 sec
Max electronic speed
1/32000 sec
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for wildlife, URSA Mini Pro 12K or GR IVx?

URSA Mini Pro 12K scores 10.0/10 versus 1.0/10 for GR IVx — 30fps burst captures fleeting moments.

What's the resolution difference between the URSA Mini Pro 12K and GR IVx?

URSA Mini Pro 12K is 80 MP and GR IVx is 25.74 MP, so the URSA Mini Pro 12K captures more detail for cropping and large prints.

Do the URSA Mini Pro 12K and GR IVx have in-body image stabilization?

URSA Mini Pro 12K has 8-stop in-body image stabilization, while GR IVx has in-body image stabilization.

Which shoots faster bursts — the URSA Mini Pro 12K or the GR IVx?

URSA Mini Pro 12K reaches 30 fps electronic. GR IVx reaches 4 fps electronic.

What's the weight difference between the URSA Mini Pro 12K and GR IVx?

URSA Mini Pro 12K weighs 520 g and GR IVx weighs 265 g, so the GR IVx is 255 g lighter.

Do the URSA Mini Pro 12K and GR IVx record 4K video?

URSA Mini Pro 12K: 8K / 6K (max), 4K up to 120p. GR IVx: 4K up to 30p.

Are the URSA Mini Pro 12K and GR IVx weather sealed?

URSA Mini Pro 12K: Yes. GR IVx: No.

Which has better battery life?

Rated battery life is 520 shots (CIPA) for the URSA Mini Pro 12K and 250 shots for the GR IVx, giving the URSA Mini Pro 12K the edge.

How much does each cost?

URSA Mini Pro 12K launched at $9,995 and GR IVx at $1,499. The GR IVx is $8,496 less.

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

Add any camera to get a three-way URSA Mini Pro 12K vs GR IVx vs X comparison.

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

Product images courtesy of Blackmagic and Ricoh press materials.