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Pentax

K-50

Weather-sealed entry APS-C DSLR with IBIS and AA filter simulator at an accessible price.

$599

Launch price

Released Jun 2013

vs
Alpha 7R VI

Sony

Alpha 7R VI

66.8MP stacked full-frame high-resolution body with 30fps bursts, 8K 30p, 4K 120p, and Sony's AI processing unit.

$4,499

Launch price

Released Jun 2026

Alpha 7R VI is 13 years newer.

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Wins

2categories

K-50

TravelVlogging

Wins

11categories

Alpha 7R VI

PortraitVideo & Hybrid

1 categories tied

Which would you choose?

TL;DR — Key differences

K-50 wins 0 categories·Alpha 7R VI wins 5 categories
  • BAlpha 7R VI has higher AF points / zones (759 vs 101)
  • BAlpha 7R VI has higher Resolution (66.8 MP vs 16.3 MP)
  • BAlpha 7R VI has higher Max video bit rate (600 Mbps vs 150 Mbps)
  • BAlpha 7R VI has higher EVF resolution (9,437,184 vs 2,360,000)
  • BAlpha 7R VI has higher Burst (electronic) (30 fps vs 11 fps)

Key specs at a glance

K-50Alpha 7R VI
Resolution16.3 MP66.8 MP
SensorAPS-CFull Frame
ISO max25,60032,000
Burst11 fps30 fps
4K60 fps120 fps
IBIS3-stopYes
Weight590 g713 g
Battery640 shots600 shots

Size and weight, to scale

K-50

129 × 97 × 70 mm

590 g (1.30 lb / 20.81 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 7R VI front view

Alpha 7R VI

133 × 97 × 83 mm

713 g (1.57 lb / 25.15 oz)

K-50 is 4mm narrower and 13mm thinner than Alpha 7R VI.

K-50 is 123 g lighter than Alpha 7R VI.

Depth (front-to-back): 70mm K-50 · 83mm Alpha 7R VI

Back view, to scale

Width × Height — same proportions as the front of the body.

K-50

129 × 97 mm

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

Credit card

85.6 × 54 mm

Alpha 7R VI back view

Alpha 7R VI

133 × 97 mm

Top view, to scale

Width × Depth (front-to-back) — see which body is chunkier on the table.

K-50

129 × 70 mm

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

Credit card

85.6 × 54 mm

Alpha 7R VI top view

Alpha 7R VI

133 × 83 mm

Sensor size, to scale

K-50

23.7 × 15.7 mm · APS-C

372 mm² area

Alpha 7R VI

35.9 × 24 mm · Full Frame

862 mm² area

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

Lens ecosystem

Native lens selection

K-50

Pentax K

70+

native lenses available

30 first-party40 third-party

Alpha 7R VI

✓ 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 caseK-50Alpha 7R VI
Portrait
5.5Fair
8.5Excellent✓ wins
Sports & Action
4.0Fair
7.0Good✓ wins
Video & Hybrid
5.5Fair
8.0Excellent✓ wins
Landscape
2.5Limited
7.5Good✓ wins
Travel
7.5Good✓ wins
5.0Fair
Wildlife
6.5Good
6.5Good
Vlogging
7.0Good✓ wins
5.5Fair

Why pick one over the other

Reasons to choose

K-50

  • Dimensions (W×H×D mm)

    Adds 129, 96.5, 70

  • Card types

    Adds SD UHS-II

  • AA filter

    Only K-50 supports it

  • Weather sealing

    Only K-50 supports it

  • Weight

    590 g vs 713 g — lower is better

  • Battery life (CIPA)

    640 shots vs 600 shots — higher is better

Reasons to choose

Alpha 7R VI

  • AF low-light limit

    -6 EV vs -3 EV — lower is better

  • Dimensions (W×H×D mm)

    Adds 132.7, 96.9, 82.9

  • Card types

    Adds CFexpress Type A, SDXC UHS-II

  • AF points / zones

    759 vs 101 — higher is better

  • Resolution

    66.8 MP vs 16.3 MP — higher is better

  • Max video bit rate

    600 Mbps vs 150 Mbps — higher is better

  • EVF resolution

    9,437,184 vs 2,360,000 — higher is better

  • Burst (electronic)

    30 fps vs 11 fps — higher 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)
  • 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.

K-50

Pros

  • Weather sealed entry
  • IBIS
  • AA filter simulator
  • Great used value

Cons

  • 16MP sensor
  • DSLR platform
  • Limited video

Alpha 7R VI

Pros

  • 66.8MP stacked full-frame sensor
  • 30fps blackout-free electronic burst
  • 8K 30p and 4K 120p video
  • 5-axis sensor-shift stabilization
  • 9.44M-dot HDR OLED EVF

Cons

  • Very expensive
  • Large files demand fast cards and storage
  • 8K workflow can be heavy

Decided which one is right for you?

Compare live prices for the K-50 and Alpha 7R VI at major authorized retailers.

Affiliate disclosure: As an Amazon Associate, Cameraegg earns from qualifying purchases. Cameraegg may also earn commission from B&H links, at no extra cost to you.

Full specifications

= category winner

K-50
Alpha 7R VI
Resolution
16.3 MP
66.8 MP4.1× more
Sensor type
APS-C CMOS
Full-Frame Stacked CMOS
Sensor size
23.7 × 15.7 mm
35.9 × 24.0 mm
AA filter
Yes
No
K-50
Alpha 7R VI
Processor
Image processor
BIONZ XR with AI processing unit
K-50
Alpha 7R VI
ISO min (native)
100
100
ISO max (native)
25,600
32,000+0.3 stops
ISO max (expanded)
102,400
102,400
K-50
Alpha 7R VI
Shutter type
Mechanical + Electronic
Mechanical focal plane shutter + electronic rolling shutter
Max mechanical speed
1/8000 sec
1/8000 sec
Max electronic speed
1/16000 sec

Frequently asked

Quick answers generated from verified specs.

Which is better for landscape, K-50 or Alpha 7R VI?

Alpha 7R VI scores 7.5/10 versus 2.5/10 for K-50 — 66.8MP — massive detail for large prints.

What's the resolution difference between the K-50 and Alpha 7R VI?

K-50 is 16.3 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.

Do the K-50 and Alpha 7R VI have in-body image stabilization?

K-50 has 3-stop in-body image stabilization, while Alpha 7R VI has in-body image stabilization.

Which shoots faster bursts — the K-50 or the Alpha 7R VI?

K-50 reaches 11 fps electronic. Alpha 7R VI reaches 30 fps electronic.

What's the weight difference between the K-50 and Alpha 7R VI?

K-50 weighs 590 g and Alpha 7R VI weighs 713 g, so the K-50 is 123 g lighter.

Do the K-50 and Alpha 7R VI record 4K video?

K-50: 4K up to 60p. Alpha 7R VI: 8K (max), 4K up to 120p.

Are the K-50 and Alpha 7R VI weather sealed?

K-50: Yes. Alpha 7R VI: No.

Which has better battery life?

Rated battery life is 640 shots (CIPA) for the K-50 and 600 shots for the Alpha 7R VI, giving the K-50 the edge.

How much does each cost?

K-50 launched at $599 and Alpha 7R VI at $4,499. The K-50 is $3,900 less.

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

Add any camera to get a three-way K-50 vs Alpha 7R VI vs X comparison.

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

Product images courtesy of Pentax and Sony press materials.