Nikon
D810
36MP full-frame DSLR workhorse prized for landscape, studio, and commercial stills.
$3,299
Launch priceReleased Jun 2014
OM System
OM-1 II
Flagship MFT with stacked sensor, 120fps, and pro wildlife features.
$2,399
Launch priceReleased Feb 2024
OM-1 II is 9.6 years newer.
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Wins
D810
Wins
OM-1 II
2 categories tied
Which would you choose?
TL;DR — Key differences
- BOM-1 II has higher AF points / zones (1053 vs 51)
- BOM-1 II has higher ISO max (native) (102,400 vs 12,800)
- BOM-1 II has higher Burst (electronic) (120 fps vs 20 fps)
- BOM-1 II has higher 1080p max frame rate (240 fps vs 50 fps)
- BOM-1 II has higher Max video bit rate (150 Mbps vs 42 Mbps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
D810
146 × 123 × 82 mm
980 g (2.16 lb / 34.57 oz)
Credit card
85.6 × 54 mm
for scale
OM-1 II
135 × 92 × 73 mm
599 g (1.32 lb / 21.13 oz)
D810 is 11mm wider, 31mm taller, and 9mm thicker than OM-1 II.
D810 is 381 g heavier than OM-1 II.
Depth (front-to-back): 82mm D810 · 73mm OM-1 II
Back view, to scale
Width × Height — same proportions as the front of the body.
D810
146 × 123 mm
Credit card
85.6 × 54 mm
OM-1 II
135 × 92 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
D810
146 × 82 mm
Credit card
85.6 × 54 mm
OM-1 II
135 × 73 mm
Sensor size, to scale
D810
35.9 × 24 mm · Full Frame
862 mm² area
OM-1 II
17.4 × 13 mm · Compact / large-type
226 mm² area
3.8× larger sensor area = shallower depth of field and better low-light performance.
Lens ecosystem
Native lens selection
D810
✓ more lensesNikon F
270+
native lenses available
OM-1 II
Micro Four Thirds
130+
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
D810
Subject recognition
Adds Human, Animal, Bird…
Dimensions (W×H×D mm)
Adds 146, 123, 81.5
Card types
Adds SD, CompactFlash
Codecs
Adds MPEG-4
Card slots
2 vs 1 — higher is better
Headphone jack (3.5mm)
Only D810 supports it
Resolution
36.3 MP vs 20.4 MP — higher is better
ISO min (native)
64 vs 80 — lower is better
Reasons to choose
OM-1 II
AF low-light limit
-8 EV vs -2 EV — lower is better
Subject recognition
Adds People, Birds, Animals…
Dimensions (W×H×D mm)
Adds 134.8, 91.6, 72.7
Card types
Adds SD UHS-II, SD UHS-I
AF points / zones
1053 vs 51 — higher is better
ISO max (native)
102,400 vs 12,800 — higher is better
Burst (electronic)
120 fps vs 20 fps — higher is better
1080p max frame rate
240 fps vs 50 fps — higher is better
Both cameras share
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓4K max frame rate — Both 60 fps
- ✓Weather sealing — Both support weather sealing
- ✓EVF refresh rate — Both 120 Hz
Pros & cons at a glance
Editorially curated highlights and trade-offs.
D810
Pros
- ✓36MP no OPLF
- ✓Excellent dynamic range
- ✓Pro F-mount ecosystem
Cons
- –Superseded by D850
- –Slow live view AF
- –Heavy
OM-1 II
Pros
- ✓120fps stills
- ✓Stacked MFT
- ✓IP53 weather sealing
- ✓Computational features
Cons
- –MFT sensor size
- –Smaller ecosystem
- –Menu complexity
Decided which one is right for you?
Compare live prices for the D810 and OM-1 II at major authorized retailers.
Nikon D810
OM System OM-1 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for landscape, D810 or OM-1 II?
D810 scores 7.5/10 versus 2.5/10 for OM-1 II — 36.3MP — ample resolution.
What's the resolution difference between the D810 and OM-1 II?
D810 is 36.3 MP and OM-1 II is 20.4 MP, so the D810 captures more detail for cropping and large prints.
Do the D810 and OM-1 II have in-body image stabilization?
D810 does not have IBIS, while OM-1 II has 8.5-stop in-body image stabilization.
Which shoots faster bursts — the D810 or the OM-1 II?
D810 reaches 20 fps electronic. OM-1 II reaches 120 fps electronic.
What's the weight difference between the D810 and OM-1 II?
D810 weighs 980 g and OM-1 II weighs 599 g, so the OM-1 II is 381 g lighter.
Do the D810 and OM-1 II record 4K video?
D810: 4K up to 60p. OM-1 II: 4K up to 60p.
Are the D810 and OM-1 II weather sealed?
D810: Yes. OM-1 II: Yes.
Which has better battery life?
Rated battery life is 640 shots (CIPA) for the D810 and 520 shots for the OM-1 II, giving the D810 the edge.
How much does each cost?
D810 launched at $3,299 and OM-1 II at $2,399. The OM-1 II is $900 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way D810 vs OM-1 II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.
Product images courtesy of Nikon and OM System press materials.