Panasonic
Lumix BS1H
Box-style L-mount cinema camera with S1H full-frame sensor, 6K, dual native ISO, and genlock/timecode.
$3,499
Launch priceReleased May 2021
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Launch priceReleased Oct 2021
Alpha 7 IV is 5 months newer.
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.
Wins
Lumix BS1H
Wins
Alpha 7 IV
6 categories tied
Which would you choose?
TL;DR — Key differences
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 120 frames)
- BAlpha 7 IV has higher AF points / zones (759 vs 225)
- BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 200 Mbps)
- BAlpha 7 IV has higher ISO max (native) (51,200 vs 25,600)
- ALumix BS1H has higher Burst (electronic) (20 fps vs 10 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareLumix BS1H
94 × 94 × 66 mm
870 g (1.92 lb / 30.69 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
Lumix BS1H is 38mm narrower, 3mm shorter, and 13mm thinner than Alpha 7 IV.
Lumix BS1H is 212 g heavier than Alpha 7 IV.
Depth (front-to-back): 66mm Lumix BS1H · 80mm Alpha 7 IV
Back view, to scale
Width × Height — same proportions as the front of the body.
Lumix BS1H
94 × 94 mm
Credit card
85.6 × 54 mm
Alpha 7 IV
131 × 96 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
Lumix BS1H
94 × 66 mm
Credit card
85.6 × 54 mm
Alpha 7 IV
131 × 80 mm
Sensor size, to scale
Lumix BS1H
35.6 × 23.8 mm · Full Frame
847 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
Lumix BS1H
Leica L
80+
native lenses available
Alpha 7 IV
✓ 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 BS1H
Codecs
Adds V-Log, ProRes
Dimensions (W×H×D mm)
Adds 93.5, 93.5, 66.4
Burst (electronic)
20 fps vs 10 fps — higher is better
Pre-Capture / Pre-Release
Only Lumix BS1H supports it
Subject recognition
Adds Vehicle
IBIS effectiveness
7 stops vs 5.5 stops — higher is better
Battery life (CIPA)
640 shots vs 580 shots — higher is better
EVF resolution
3,690,000 vs 3,686,400 — higher is better
Reasons to choose
Alpha 7 IV
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Dimensions (W×H×D mm)
Adds 131.3, 96.4, 79.8
RAW buffer depth
828 frames vs 120 frames — higher is better
AF points / zones
759 vs 225 — higher is better
Max video bit rate
600 Mbps vs 200 Mbps — higher is better
ISO max (native)
51,200 vs 25,600 — higher is better
Subject recognition
Adds Insect, Car/Train, Airplane
Weather sealing
Only Alpha 7 IV supports it
Both cameras share
- ✓AA filter — Both support aa filter
- ✓ISO min (native) — Both 100
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓4K max frame rate — Both 60 fps
- ✓Internal RAW video — Both support internal raw video
Pros & cons at a glance
Editorially curated highlights and trade-offs.
Lumix BS1H
Pros
- ✓S1H sensor in box form
- ✓6K recording
- ✓Dual native ISO
- ✓Genlock & timecode
Cons
- –No screen
- –Requires external monitor
- –Box ergonomics only
Alpha 7 IV
Pros
- ✓33MP — more detail for cropping and print
- ✓10-bit 4K 60p (Super35 crop) / 4K 30p full-frame
- ✓Full-size HDMI port
- ✓759 phase-detect AF points
Cons
- –4K 60p requires Super35 crop
- –10fps burst lags behind R6 II at 40fps
- –Complex menu system
Decided which one is right for you?
Compare live prices for the Lumix BS1H and Alpha 7 IV at major authorized retailers.
Panasonic Lumix BS1H
Sony Alpha 7 IV
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
Frequently asked
Quick answers generated from verified specs.
Which is better for vlogging, Lumix BS1H or Alpha 7 IV?
Alpha 7 IV scores 8.0/10 versus 5.5/10 for Lumix BS1H — Fully articulating screen — see yourself while filming.
What's the resolution difference between the Lumix BS1H and Alpha 7 IV?
Lumix BS1H is 24.2 MP and Alpha 7 IV is 33 MP, so the Alpha 7 IV captures more detail for cropping and large prints.
Do the Lumix BS1H and Alpha 7 IV have in-body image stabilization?
Lumix BS1H has 7-stop in-body image stabilization, while Alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the Lumix BS1H or the Alpha 7 IV?
Lumix BS1H reaches 20 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the Lumix BS1H and Alpha 7 IV?
Lumix BS1H weighs 870 g and Alpha 7 IV weighs 658 g, so the Alpha 7 IV is 212 g lighter.
Do the Lumix BS1H and Alpha 7 IV record 4K video?
Lumix BS1H: 6K (max), 4K up to 60p. Alpha 7 IV: 4K up to 60p.
Are the Lumix BS1H and Alpha 7 IV weather sealed?
Lumix BS1H: No. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the Lumix BS1H and 580 shots for the Alpha 7 IV, giving the Lumix BS1H the edge.
How much does each cost?
Lumix BS1H launched at $3,499 and Alpha 7 IV at $2,499. The Alpha 7 IV is $1,000 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way Lumix BS1H vs Alpha 7 IV vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Panasonic and Sony press materials.