§ 03 Head to head

Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye vs Panasonic Leica DG Summilux 9mm F1.7 ASPH

Olympus 8mm f/1.8 has a wider field of view. Panasonic 9mm f/1.7 is 0.2 stops brighter maximum aperture.

Both lenses are made for the Micro Four Thirds mount: the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye is an 8mm f/1.8 prime, and the Panasonic Leica DG Summilux 9mm F1.7 ASPH is a 9mm f/1.7 prime. On paper the Panasonic Leica DG Summilux 9mm F1.7 ASPH comes out ahead, 6 advantages to 1, but which one suits you depends on what you shoot.

01

Key differences

From manufacturer specifications

Why is the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye better than the Panasonic Leica DG Summilux 9mm F1.7 ASPH?

  • Wider field of view (8mm vs 9mm)

Why is the Panasonic Leica DG Summilux 9mm F1.7 ASPH better than the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye?

  • 0.2 stops brighter maximum aperture (f/1.7 vs f/1.8)
  • Longer reach (9mm vs 8mm)
  • 185 g lighter (130 g vs 315 g)
  • 10 mm shorter (52 mm vs 62 mm long)
  • Focuses 2 cm closer (0.1 m vs 0.12 m)
  • Newer design (2022 vs 2015)
02

Which should you buy?

By use
  • landscape For landscape photography, the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye has the edge: it goes wider, to 8mm against 9mm.
  • architecture For architecture, the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye has the edge: it goes wider, to 8mm against 9mm.
  • low-light For low-light shooting, the Panasonic Leica DG Summilux 9mm F1.7 ASPH has the edge: its f/1.7 aperture gathers more light than f/1.8.
  • astrophotography For astrophotography, the Panasonic Leica DG Summilux 9mm F1.7 ASPH has the edge: its f/1.7 aperture gathers more light than f/1.8.
03

Specification

18 rows · better value flagged ◆
SpecificationOlympus M.Zuiko Digital 8 mm f/1.8 ED PRO FisheyePanasonic Leica DG Summilux 9mm F1.7 ASPH
Focal length8mm 9mm
Maximum aperturef/1.8 f/1.7 ◆
Minimum aperturef/22 f/16
Lens typePrime lens Ultra-wide-angle prime lens
FormatMicro Four Thirds Micro Four Thirds
Weight315 g (11.11 oz) 130 g (4.59 oz) ◆
Dimensions80 x 62 mm 60.8 mm (diameter) x 52 mm (length)
Minimum focusing distance0.12 m (4.72 inches) 0.095 m (3.74 in) ◆
Maximum magnification—0.25x
Image stabilizationNo No
Weather sealingYes Yes (dust- and splash-resistant, freeze-proof down to -10°C)
Aperture ringNo No
Aperture blades7 7 (rounded)
Optical construction17 elements / 15 groups 12 elements in 9 groups
Filter size—55 mm
Lens mountMicro Four Thirds Micro Four Thirds
Released2015 2022
Price$1,299.99 list price —
04

Size

Drawn to relative scale
  • A · Olympus
  • B · Panasonic
  • 62 × 80 mm
  • 52 × 60.8 mm

The Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye is 10 mm longer and 185 g heavier than the Panasonic Leica DG Summilux 9mm F1.7 ASPH.

05

Sample frames

Shot on each lens

Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye

Darlene Hooley Bridge • OHSU Tram Tower • August 23, 2026
Darlene Hooley Bridge • OHSU Tram Tower • August 23, 2026 by victorvonsalza
Darlene Hooley Bridge • OHSU Tram Tower Summer into Fall Triptych
Darlene Hooley Bridge • OHSU Tram Tower Summer into Fall Triptych by victorvonsalza
The Sázava River near Ledeč
The Sázava River near Ledeč by bullin
The Sázava River near Ledeč
The Sázava River near Ledeč by bullin

Panasonic Leica DG Summilux 9mm F1.7 ASPH

2024.09.23-15.50.47
2024.09.23-15.50.47 by Pak T
Le coin de Guidel
Le coin de Guidel by
Se de\u0301visser le cou!
Se de\u0301visser le cou! by
A certain elegance...
A certain elegance... by bardwellpeter
06

Video reviews

4 on YouTube
Video thumbnail for Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye review 1
Video thumbnail for Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye review 2
Video thumbnail for Panasonic Leica DG Summilux 9mm F1.7 ASPH review 1
Video thumbnail for Panasonic Leica DG Summilux 9mm F1.7 ASPH review 2
07

Questions

Which lens has the brighter aperture, the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye or the Panasonic Leica DG Summilux 9mm F1.7 ASPH?
The Panasonic Leica DG Summilux 9mm F1.7 ASPH opens to f/1.7, against f/1.8 on the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye, 0.2 stops brighter.
Which is lighter, the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye or the Panasonic Leica DG Summilux 9mm F1.7 ASPH?
The Panasonic Leica DG Summilux 9mm F1.7 ASPH weighs 130 g, 185 g less than the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye (315 g).
Which focuses closer, the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye or the Panasonic Leica DG Summilux 9mm F1.7 ASPH?
The Panasonic Leica DG Summilux 9mm F1.7 ASPH focuses down to 0.1 m, against 0.12 m for the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye.
Do the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye and the Panasonic Leica DG Summilux 9mm F1.7 ASPH have image stabilization?
No, neither lens has optical image stabilization; rely on in-body stabilization if your camera has it.
Is the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye or the Panasonic Leica DG Summilux 9mm F1.7 ASPH better for landscape photography?
For landscape photography, the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye has the edge: it goes wider, to 8mm against 9mm.
Is the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye or the Panasonic Leica DG Summilux 9mm F1.7 ASPH better for architecture?
For architecture, the Olympus M.Zuiko Digital 8 mm f/1.8 ED PRO Fisheye has the edge: it goes wider, to 8mm against 9mm.
08

Other comparisons