Canon
EOS 77D
Mid-tier APS-C DSLR with top LCD, Dual Pixel AF, and the same 24MP sensor as the 80D.
$899
Launch priceReleased Feb 2017
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 priceReleased Jun 2026
Alpha 7R VI is 9.3 years newer.
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Wins
EOS 77D
Wins
Alpha 7R VI
2 categories tied
Which would you choose?
TL;DR — Key differences
- 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 Resolution (66.8 MP vs 24.2 MP)
- BAlpha 7R VI has higher RAW buffer depth (150 frames vs 60 frames)
- BAlpha 7R VI has higher Burst (electronic) (30 fps vs 15 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareEOS 77D
131 × 100 × 76 mm
540 g (1.19 lb / 19.05 oz)
Credit card
85.6 × 54 mm
for scale
Alpha 7R VI
133 × 97 × 83 mm
713 g (1.57 lb / 25.15 oz)
EOS 77D is 2mm narrower and 7mm thinner than Alpha 7R VI but it is also 3mm taller.
EOS 77D is 173 g lighter than Alpha 7R VI.
Depth (front-to-back): 76mm EOS 77D · 83mm Alpha 7R VI
Back view, to scale
Width × Height — same proportions as the front of the body.
EOS 77D
131 × 100 mm
Credit card
85.6 × 54 mm
Alpha 7R VI
133 × 97 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
EOS 77D
131 × 76 mm
Credit card
85.6 × 54 mm
Alpha 7R VI
133 × 83 mm
Sensor size, to scale
EOS 77D
22.3 × 14.9 mm · APS-C
332 mm² area
Alpha 7R VI
35.9 × 24 mm · Full Frame
862 mm² area
2.6× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
EOS 77D
Canon EF
300+
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
EOS 77D
Dimensions (W×H×D mm)
Adds 131, 99.8, 76.2
Card types
Adds SD UHS-II
AA filter
Only EOS 77D supports it
AF low-light limit
-6.5 EV vs -6 EV — lower is better
Pre-Capture / Pre-Release
Only EOS 77D supports it
AF points / zones
1053 vs 759 — higher is better
Weight
540 g vs 713 g — lower is better
Battery life (CIPA)
640 shots vs 600 shots — higher is better
Reasons to choose
Alpha 7R VI
Dimensions (W×H×D mm)
Adds 132.7, 96.9, 82.9
Card types
Adds CFexpress Type A, SDXC UHS-II
Max video bit rate
600 Mbps vs 150 Mbps — higher is better
EVF resolution
9,437,184 vs 2,360,000 — higher is better
Resolution
66.8 MP vs 24.2 MP — higher is better
RAW buffer depth
150 frames vs 60 frames — higher is better
Codecs
Adds XAVC HS, XAVC S, XAVC S-I
Burst (electronic)
30 fps vs 15 fps — higher is better
Both cameras share
- ✓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)
- ✓Card slots — Both 2
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
EOS 77D
Pros
- ✓Top LCD
- ✓Dual Pixel AF
- ✓24MP APS-C
- ✓Lightweight DSLR
Cons
- –No weather sealing
- –No IBIS
- –DSLR declining
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 EOS 77D and Alpha 7R VI at major authorized retailers.
Canon EOS 77D
Sony Alpha 7R VI
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, EOS 77D or Alpha 7R VI?
Alpha 7R VI scores 7.5/10 versus 3.5/10 for EOS 77D — 66.8MP — massive detail for large prints.
What's the resolution difference between the EOS 77D and Alpha 7R VI?
EOS 77D is 24.2 MP and Alpha 7R VI is 66.8 MP, so the Alpha 7R VI captures more detail for cropping and large prints.
Do the EOS 77D and Alpha 7R VI have in-body image stabilization?
EOS 77D has 6-stop in-body image stabilization, while Alpha 7R VI has in-body image stabilization.
Which shoots faster bursts — the EOS 77D or the Alpha 7R VI?
EOS 77D reaches 15 fps electronic. Alpha 7R VI reaches 30 fps electronic.
What's the weight difference between the EOS 77D and Alpha 7R VI?
EOS 77D weighs 540 g and Alpha 7R VI weighs 713 g, so the EOS 77D is 173 g lighter.
Do the EOS 77D and Alpha 7R VI record 4K video?
EOS 77D: 4K up to 60p. Alpha 7R VI: 8K (max), 4K up to 120p.
Are the EOS 77D and Alpha 7R VI weather sealed?
EOS 77D: No. Alpha 7R VI: No.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the EOS 77D and 600 shots for the Alpha 7R VI, giving the EOS 77D the edge.
How much does each cost?
EOS 77D launched at $899 and Alpha 7R VI at $4,499. The EOS 77D is $3,600 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way EOS 77D 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 Canon and Sony press materials.