Canon
EOS R8 Mark II
Compact 24.2MP full-frame RF body with 5-axis IBIS (up to 7.5-stop Coordinated Control IS), Dual Pixel CMOS AF II, 40fps electronic bursts, and 6K-oversampled 4K 60p.
$1,899
Launch priceReleased Sep 2026
Sony
Alpha 7 IV
33MP hybrid all-rounder with 10-bit 4K 60p and AI-powered subject tracking.
$2,499
Launch priceReleased Oct 2021
EOS R8 Mark II is 4.9 years newer.
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Wins
EOS R8 Mark II
Wins
Alpha 7 IV
2 categories tied
Which would you choose?
TL;DR — Key differences
- BAlpha 7 IV has higher RAW buffer depth (828 frames vs 73 frames)
- AEOS R8 Mark II has higher Burst (electronic) (40 fps vs 10 fps)
- BAlpha 7 IV has higher Max video bit rate (600 Mbps vs 250 Mbps)
- BAlpha 7 IV has higher ISO max (native) (51,200 vs 25,600)
- BAlpha 7 IV has higher Card slots (2 vs 1)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
EOS R8 Mark II
131 × 90 × 80 mm
499 g (1.10 lb / 17.60 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 7 IV
131 × 96 × 80 mm
658 g (1.45 lb / 23.21 oz)
EOS R8 Mark II is 7mm shorter than Alpha 7 IV.
EOS R8 Mark II is 159 g lighter than Alpha 7 IV.
Depth (front-to-back): 80mm EOS R8 Mark II · 80mm Alpha 7 IV
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS R8 Mark II
131 × 90 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.
EOS R8 Mark II
131 × 80 mm
Credit card
85.6 × 54 mm
Alpha 7 IV
131 × 80 mm
Sensor size, to scale
EOS R8 Mark II
36 × 24 mm · Full Frame
864 mm² area
Alpha 7 IV
35.9 × 23.9 mm · Full Frame
858 mm² area
Lens ecosystem
Native lens selection
EOS R8 Mark II
Canon RF
105+
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
EOS R8 Mark II
AF low-light limit
-7.5 EV vs -4 EV — lower is better
Codecs
Adds XF-HEVC S
Stabilization modes
Adds IBIS, Coordinated Control IS, Movie Digital IS…
Card types
Adds SD, SDHC, SDXC
Burst (electronic)
40 fps vs 10 fps — higher is better
Pre-Capture / Pre-Release
Only EOS R8 Mark II supports it
Dimensions (W×H×D mm)
Adds 89.9
AF points / zones
1053 vs 759 — higher is better
Reasons to choose
Alpha 7 IV
Codecs
Adds XAVC HS, XAVC S, XAVC S-I…
Card types
Adds CFexpress Type A, SD UHS-II
RAW buffer depth
828 frames vs 73 frames — higher is better
Max video bit rate
600 Mbps vs 250 Mbps — higher is better
ISO max (native)
51,200 vs 25,600 — higher is better
Subject recognition
Adds Insect, Car/Train, Airplane
Internal RAW video
Only Alpha 7 IV supports it
Card slots
2 vs 1 — higher is better
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
- ✓In-body stabilization (IBIS) — Both support in-body stabilization (ibis)
- ✓Weather sealing — Both support weather sealing
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS R8 Mark II
Pros
- ✓Lightest EOS full-frame body with IBIS (546g)
- ✓Up to 7.5-stop Coordinated Control IS
- ✓40fps electronic + 20-frame pre-capture
- ✓Uncropped 6K-oversampled 4K 60p / FHD 180p
- ✓Wi-Fi 6, USB 10 Gbps, headphone jack
Cons
- –Same 24.2MP sensor as original R8
- –Single SD UHS-II slot
- –LP-E17 battery (~340 LCD / 220 EVF shots)
- –No mechanical shutter
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 EOS R8 Mark II and Alpha 7 IV at major authorized retailers.
Canon EOS R8 Mark II
Sony Alpha 7 IV
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, EOS R8 Mark II or Alpha 7 IV?
Alpha 7 IV scores 7.5/10 versus 3.5/10 for EOS R8 Mark II — 4K recording.
What's the resolution difference between the EOS R8 Mark II and Alpha 7 IV?
EOS R8 Mark II 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 EOS R8 Mark II and Alpha 7 IV have in-body image stabilization?
EOS R8 Mark II has 7.5-stop in-body image stabilization, while Alpha 7 IV has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the EOS R8 Mark II or the Alpha 7 IV?
EOS R8 Mark II reaches 40 fps electronic. Alpha 7 IV reaches 10 fps electronic.
What's the weight difference between the EOS R8 Mark II and Alpha 7 IV?
EOS R8 Mark II weighs 499 g and Alpha 7 IV weighs 658 g, so the EOS R8 Mark II is 159 g lighter.
Do the EOS R8 Mark II and Alpha 7 IV record 4K video?
EOS R8 Mark II: 4K up to 59.94p. Alpha 7 IV: 4K up to 60p.
Are the EOS R8 Mark II and Alpha 7 IV weather sealed?
EOS R8 Mark II: Yes. Alpha 7 IV: Yes.
Which has better battery life?
Rated battery life is 340 shots (CIPA) for the EOS R8 Mark II and 580 shots for the Alpha 7 IV, giving the Alpha 7 IV the edge.
How much does each cost?
EOS R8 Mark II launched at $1,899 and Alpha 7 IV at $2,499. The EOS R8 Mark II is $600 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS R8 Mark II vs Alpha 7 IV vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed September 2026.
Product images courtesy of Canon and Sony press materials.