OM System
PEN
First OM SYSTEM-branded PEN: compact rangefinder-style Micro Four Thirds body with 20.4MP Live MOS, 5-axis IBIS, built-in EVF, IPX1 sealing, and in-camera computational modes.
$1,000
Launch priceReleased Sep 2026
Panasonic
Lumix G9 II
MFT hybrid with 8-stop IBIS and 75fps stills for wildlife on a budget.
$1,899
Launch priceReleased Sep 2023
PEN is 3 years newer.
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Wins
PEN
Wins
Lumix G9 II
2 categories tied
Which would you choose?
TL;DR — Key differences
- BLumix G9 II has higher RAW buffer depth (200 frames vs 29 frames)
- BLumix G9 II has higher AF points / zones (779 vs 121)
- BLumix G9 II has higher 4K max frame rate (120 fps vs 30 fps)
- BLumix G9 II has higher Max video bit rate (800 Mbps vs 240 Mbps)
- BLumix G9 II has higher Burst (mechanical) (14 fps vs 5 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to share
PEN
126 × 75 × 43 mm
393 g (0.87 lb / 13.86 oz)
Credit card
85.6 × 54 mm
for scale
Lumix G9 II
134 × 102 × 90 mm
658 g (1.45 lb / 23.21 oz)
PEN is 9mm narrower, 28mm shorter, and 47mm thinner than Lumix G9 II.
PEN is 265 g lighter than Lumix G9 II.
Depth (front-to-back): 43mm PEN · 90mm Lumix G9 II
Back view, to scale
Width × Height — same proportions as the front of the body.
PEN
126 × 75 mm
Credit card
85.6 × 54 mm
Lumix G9 II
134 × 102 mm
Top view, to scale
Width × Depth (front-to-back) — see which body is chunkier on the table.
PEN
126 × 43 mm
Credit card
85.6 × 54 mm
Lumix G9 II
134 × 90 mm
Sensor size, to scale
PEN
17.4 × 13 mm · Compact / large-type
226 mm² area
Lumix G9 II
17.3 × 13 mm · Micro Four Thirds
225 mm² area
Lens ecosystem
Native lens selection
PEN
✓ more lensesMicro Four Thirds
130+
native lenses available
Lumix G9 II
✓ more lensesMicro 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
PEN
Dimensions (W×H×D mm)
Adds 125.8, 74.5, 43.3
Card types
Adds SD, SDHC, SDXC
Subject recognition
Adds Dog, Cat
Codecs
Adds MOV, MPEG-4 AVC
Weight
393 g vs 658 g — lower is better
EVF magnification
1.1 × vs 0.8 × — higher is better
Battery life (CIPA)
410 shots vs 390 shots — higher is better
Reasons to choose
Lumix G9 II
Dimensions (W×H×D mm)
Adds 134.3, 102.3, 90.1
Card types
Adds SD UHS-II, SD UHS-II
RAW buffer depth
200 frames vs 29 frames — higher is better
AF points / zones
779 vs 121 — higher is better
Subject recognition
Adds Face, Eye, Animal…
4K max frame rate
120 fps vs 30 fps — higher is better
Max video bit rate
800 Mbps vs 240 Mbps — higher is better
Codecs
Adds Apple ProRes 422 HQ, H.265
Both cameras share
- ✓ISO max (native) — Both 25,600
- ✓Eye AF — Both support eye af
- ✓Animal / bird AF — Both support animal / bird af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓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.
PEN
Pros
- ✓393g rangefinder body with built-in 2.36M-dot EVF
- ✓First PEN with IPX1 dust/splash sealing
- ✓5-axis IBIS up to 5.5 stops + 121-point cross-type AF
- ✓Hi-Res, Live ND, Focus Stacking, HDR via CP button
- ✓4K / C4K video, vertical video, 3.5mm mic jack
Cons
- –Micro Four Thirds sensor vs APS-C/FF rivals
- –4K capped at 30p (C4K 24p only)
- –IPX1 is lighter sealing than OM-5 II / OM-3
- –Single SD slot, no headphone jack
Lumix G9 II
Pros
- ✓75fps stills mode
- ✓8-stop IBIS
- ✓Compact tele reach
Cons
- –MFT sensor
- –Smaller ecosystem
- –Video not GH-level
Decided which one is right for you?
Compare live prices for the PEN and Lumix G9 II at major authorized retailers.
OM System PEN
Panasonic Lumix G9 II
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for video, PEN or Lumix G9 II?
Lumix G9 II scores 9.5/10 versus 3.0/10 for PEN — 8K recording for future-proof footage.
What's the resolution difference between the PEN and Lumix G9 II?
PEN is 20.4 MP and Lumix G9 II is 25.2 MP, so the Lumix G9 II captures more detail for cropping and large prints.
Do the PEN and Lumix G9 II have in-body image stabilization?
PEN has 5.5-stop in-body image stabilization, while Lumix G9 II has 8-stop in-body image stabilization.
Which shoots faster bursts — the PEN or the Lumix G9 II?
PEN reaches 30 fps electronic. Lumix G9 II reaches 75 fps electronic.
What's the weight difference between the PEN and Lumix G9 II?
PEN weighs 393 g and Lumix G9 II weighs 658 g, so the PEN is 265 g lighter.
Do the PEN and Lumix G9 II record 4K video?
PEN: 4K up to 30p. Lumix G9 II: 5.8K Open Gate (max), 4K up to 120p.
Are the PEN and Lumix G9 II weather sealed?
PEN: Yes. Lumix G9 II: Yes.
Which has better battery life?
Rated battery life is 410 shots (CIPA) for the PEN and 390 shots for the Lumix G9 II, giving the PEN the edge.
How much does each cost?
PEN launched at $1,000 and Lumix G9 II at $1,899. The PEN is $899 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way PEN vs Lumix G9 II vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed October 2026.
Product images courtesy of OM System and Panasonic press materials.