Panasonic
Lumix GX8
Weather-sealed rangefinder-style MFT body with 20MP sensor, tilting EVF, and 4K video.
$1,199
Released Jul 2015
Sony
Alpha 7R VI
66.8MP fully-stacked full-frame high-resolution body with 30fps bursts, 8K 30p, 4K 120p, and Sony's new BIONZ XR2 engine.
$4,499
Released Jun 2026
Alpha 7R VI is 10.9 years newer.
Wins
Lumix GX8
Wins
Alpha 7R VI
TL;DR — Key differences
- BAlpha 7R VI has higher AF points / zones (759 vs 49)
- BAlpha 7R VI has higher Max video bit rate (600 Mbps vs 100 Mbps)
- BAlpha 7R VI has higher RAW buffer depth (150 frames vs 30 frames)
- BAlpha 7R VI has higher 4K max frame rate (120 fps vs 30 fps)
- BAlpha 7R VI has higher EVF resolution (9,437,184 vs 2,360,000)
Key specs at a glance
Size and weight, to scale
Lumix GX8
133 × 78 × 63 mm
487 g (1.07 lb / 17.18 oz)
Alpha 7R VI
133 × 97 × 83 mm
713 g (1.57 lb / 25.15 oz)
Lumix GX8 is 19mm shorter and 20mm thinner than Alpha 7R VI but it is also 1mm wider.
Lumix GX8 is 226 g lighter than Alpha 7R VI.
Depth (front-to-back): 63mm Lumix GX8 · 83mm Alpha 7R VI
Back view, to scale
Width × Height — same proportions as the front of the body.
Lumix GX8
133 × 78 mm
Alpha 7R VI
133 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Lumix GX8
133 × 63 mm
Alpha 7R VI
133 × 83 mm
Sensor size, to scale
Lumix GX8
17.3 × 13 mm · Micro Four Thirds
225 mm² area
Alpha 7R VI
35.9 × 24 mm · Full Frame
862 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
Lumix GX8
Micro Four Thirds
130+
native lenses available
Alpha 7R VI
✓ more lensesSony E
350+
native lenses available
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
Why pick one over the other
Reasons to choose
Lumix GX8
Dimensions (W×H×D mm)
Adds 133.2, 77.9, 63.1
Card types
Adds SD UHS-I
Codecs
Adds MP4, AVCHD
Weather sealing
Only Lumix GX8 supports it
Weight
487 g vs 713 g — lower is better
Subject recognition
Adds Face
Reasons to choose
Alpha 7R VI
AF low-light limit
-6 EV vs -4 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 49 — higher is better
Max video bit rate
600 Mbps vs 100 Mbps — higher is better
RAW buffer depth
150 frames vs 30 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
4K max frame rate
120 fps vs 30 fps — higher is better
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓In-body stabilization — Both support in-body stabilization
- ✓Touchscreen — Both support touchscreen
- ✓Wi-Fi — Both support wi-fi
- ✓Microphone jack (3.5mm) — Both support microphone jack (3.5mm)
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Lumix GX8
Pros
- ✓20MP MFT sensor
- ✓Weather sealed
- ✓Tilting EVF
- ✓4K video
Cons
- –Large for GX line
- –Older stabilization
- –Superseded
Alpha 7R VI
Pros
- ✓66.8MP fully-stacked Exmor RS sensor
- ✓30fps blackout-free electronic burst
- ✓8K 30p and 4K 120p video
- ✓8.5-stop in-body stabilization
- ✓9.44M-dot HDR OLED EVF
Cons
- –Very expensive
- –Large files demand fast cards and storage
- –8K workflow can be heavy
Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, Lumix GX8 or Alpha 7R VI?
Alpha 7R VI scores 7.5/10 versus 2.5/10 for Lumix GX8 — 66.8MP — massive detail for large prints.
What's the resolution difference between the Lumix GX8 and Alpha 7R VI?
Lumix GX8 is 20.3 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.
Do the Lumix GX8 and Alpha 7R VI have in-body image stabilization?
Lumix GX8 has 4-stop in-body image stabilization, while alpha 7R VI has in-body image stabilization.
Which shoots faster bursts — the Lumix GX8 or the Alpha 7R VI?
Lumix GX8 reaches 10 fps electronic. Alpha 7R VI reaches 30 fps electronic.
What's the weight difference between the Lumix GX8 and Alpha 7R VI?
Lumix GX8 weighs 487 g and Alpha 7R VI weighs 713 g, so the Lumix GX8 is 226 g lighter.
Do the Lumix GX8 and Alpha 7R VI record 4K video?
Lumix GX8: 4K up to 30p. Alpha 7R VI: 8K (max), 4K up to 120p.
Are the Lumix GX8 and Alpha 7R VI weather sealed?
Lumix GX8: Yes. Alpha 7R VI: No.
Which has better battery life?
Rated battery life is 330 shots (CIPA) for the Lumix GX8 and 600 shots for the Alpha 7R VI, giving the Alpha 7R VI the edge.
How much does each cost?
Lumix GX8 launched at $1,199 and Alpha 7R VI at $4,499. The Lumix GX8 is $3,300 less.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed May 2026.
Product images courtesy of Panasonic and Sony press materials.