Fujifilm
X100V
Previous-gen fixed 23mm f/2 street camera — still hugely popular and hard to find.
$1,399
Launch priceReleased Feb 2020
Pentax
K-3 Mark III Monochrome
Monochrome-only APS-C DSLR with 25.7MP sensor, IBIS, optical viewfinder, and weather sealing.
$2,199
Launch priceReleased Apr 2024
K-3 Mark III Monochrome is 4.3 years newer.
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Wins
X100V
Wins
K-3 Mark III Monochrome
2 categories tied
Which would you choose?
TL;DR — Key differences
- BK-3 Mark III Monochrome has higher IBIS effectiveness (5.5 stops vs 0 stops)
- BK-3 Mark III Monochrome has higher RAW buffer depth (120 frames vs 17 frames)
- AX100V has higher AF points / zones (425 vs 101)
- BK-3 Mark III Monochrome has higher ISO max (native) (25,600 vs 12,800)
- BK-3 Mark III Monochrome has higher 4K max frame rate (60 fps vs 30 fps)
Key specs at a glance
Size and weight, to scale
📸 Snap this size diff to shareX100V
128 × 75 × 53 mm
478 g (1.05 lb / 16.86 oz)
Credit card
85.6 × 54 mm
for scale
K-3 Mark III Monochrome
135 × 104 × 74 mm
820 g (1.81 lb / 28.92 oz)
X100V is 7mm narrower, 29mm shorter, and 20mm thinner than K-3 Mark III Monochrome.
X100V is 342 g lighter than K-3 Mark III Monochrome.
Depth (front-to-back): 53mm X100V · 74mm K-3 Mark III Monochrome
Sensor size, to scale
X100V
23.5 × 15.6 mm · APS-C
367 mm² area
K-3 Mark III Monochrome
23.5 × 15.6 mm · APS-C
367 mm² area
Lens ecosystem
Native lens selection
X100V: mount data unavailable
K-3 Mark III Monochrome
✓ more lensesPentax K
70+
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
X100V
AF low-light limit
-5 EV vs -3 EV — lower is better
Dimensions (W×H×D mm)
Adds 128, 74.8, 53.3
Card types
Adds SD UHS-I
AF points / zones
425 vs 101 — higher is better
Weight
478 g vs 820 g — lower is better
Burst (electronic)
30 fps vs 20 fps — higher is better
Burst (mechanical)
11 fps vs 8 fps — higher is better
Max video bit rate
200 Mbps vs 150 Mbps — higher is better
Reasons to choose
K-3 Mark III Monochrome
Subject recognition
Adds Human, Animal, Bird…
IBIS effectiveness
5.5 stops vs 0 stops — higher is better
Dimensions (W×H×D mm)
Adds 134.5, 103.5, 73.5
Card types
Adds SD UHS-II
RAW buffer depth
120 frames vs 17 frames — higher is better
ISO max (native)
25,600 vs 12,800 — higher is better
Animal / bird AF
Only K-3 Mark III Monochrome supports it
4K max frame rate
60 fps vs 30 fps — higher is better
Both cameras share
- ✓AF frame coverage — Both 100 %
- ✓Eye AF — Both support eye af
- ✓Pre-Capture / Pre-Release — Both support pre-capture / pre-release
- ✓Weather sealing — Both support weather sealing
- ✓EVF resolution — Both 3,690,000
- ✓Touchscreen — Both support touchscreen
Pros & cons at a glance
Editorially curated highlights and trade-offs.
X100V
Pros
- ✓Classic design
- ✓Leaf shutter
- ✓Film simulations
- ✓Proven street camera
Cons
- –Superseded by X100VI
- –Fixed lens
- –No IBIS
K-3 Mark III Monochrome
Pros
- ✓Dedicated monochrome sensor
- ✓Optical viewfinder
- ✓IBIS in a DSLR
- ✓Weather sealed
Cons
- –Black-and-white only
- –DSLR platform
- –Limited video
Decided which one is right for you?
Compare live prices for the X100V and K-3 Mark III Monochrome at major authorized retailers.
Fujifilm X100V
Pentax K-3 Mark III Monochrome
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Full specifications
✓ = category winner
Frequently asked
Quick answers generated from verified specs.
Which is better for wildlife, X100V or K-3 Mark III Monochrome?
K-3 Mark III Monochrome scores 10.0/10 versus 6.5/10 for X100V — 20fps burst captures fleeting moments.
What's the resolution difference between the X100V and K-3 Mark III Monochrome?
X100V is 26.1 MP and K-3 Mark III Monochrome is 25.7 MP, so the X100V captures more detail for cropping and large prints.
Do the X100V and K-3 Mark III Monochrome have in-body image stabilization?
X100V does not have IBIS, while K-3 Mark III Monochrome has 5.5-stop in-body image stabilization.
Which shoots faster bursts — the X100V or the K-3 Mark III Monochrome?
X100V reaches 30 fps electronic. K-3 Mark III Monochrome reaches 20 fps electronic.
What's the weight difference between the X100V and K-3 Mark III Monochrome?
X100V weighs 478 g and K-3 Mark III Monochrome weighs 820 g, so the X100V is 342 g lighter.
Do the X100V and K-3 Mark III Monochrome record 4K video?
X100V: 4K up to 30p. K-3 Mark III Monochrome: 4K up to 60p.
Are the X100V and K-3 Mark III Monochrome weather sealed?
X100V: Yes. K-3 Mark III Monochrome: Yes.
Which has better battery life?
Rated battery life is 350 shots (CIPA) for the X100V and 640 shots for the K-3 Mark III Monochrome, giving the K-3 Mark III Monochrome the edge.
How much does each cost?
X100V launched at $1,399 and K-3 Mark III Monochrome at $2,199. The X100V is $800 less.
Can't decide between two? Compare a third camera.
Add any camera to get a three-way X100V vs K-3 Mark III Monochrome vs X comparison.
Specs sourced from manufacturer data. Use-case scores algorithmically derived. Last reviewed June 2026.