Panasonic Leica L mount Ultra-wide prime
Panasonic Lumix S 20mm F2.5
Quick answer
The Panasonic Lumix S 20mm F2.5 is a ultra-wide prime lens covering 20mm at f/2.5 for the Leica L mount. Its bright maximum aperture handles indoor and evening light reasonably well.
- Full frame
- APS-C (30mm equiv.)
- 22 Leica L cameras
- Focal
- 20mm
- Aperture
- f/2.5–22
- Weight
- 142g
- Filter
- 62mm
- Min focus
- 0.18m
What 20mm sees
- Full frame crop 1.0×
- 94.5° 84° horizontal
- APS-C crop 1.5× → 30mm
- 71.6° 61.9° horizontal
Diagonal angle of view. Frames drawn to scale at 20mm. Calculated from the focal length and crop factor, not measured.
Open the field-of-view calculatorPanasonic Lumix S 20mm F2.5 specifications
Optics
- Focal length
- 20mm
- Maximum aperture
- f/2.5
- Minimum aperture
- f/22
- Format coverage
- Full frame
- Optical construction
- 11 elements in 9 groups
- Aperture blades
- 7
Focus
- Minimum focus distance
- 0.18 m
- Maximum magnification
- 0.15×
Physical
- Weather sealing
- Yes
- Filter thread
- 62 mm
- Weight
- 142 g
- Length
- 40.9 mm
- Diameter
- 69.4 mm
Specification source: panasonic.jp
What can you shoot with the Panasonic Lumix S 20mm F2.5?
At 20mm this is a ultra-wide prime, which typically suits:
- Landscapes and big skies
- Architecture and interiors
- Astrophotography and night skies
Its bright maximum aperture handles indoor and evening light reasonably well.
Frequently asked questions
What mount does the Panasonic Lumix S 20mm F2.5 use?
It uses the Leica L mount, so it fits Leica L cameras directly.
What is the focal length of the Panasonic Lumix S 20mm F2.5?
It is a fixed 20mm lens with a maximum aperture of f/2.5. That makes it a ultra-wide lens.
Is the Panasonic Lumix S 20mm F2.5 a prime or a zoom lens?
It is a prime lens with a fixed 20mm focal length. Primes usually open wider than zooms; this one opens to f/2.5.
What is the Panasonic Lumix S 20mm F2.5 equivalent on a crop sensor?
On APS-C (1.5x crop) it frames like 30mm on full frame, with a 61.9° horizontal and 71.6° diagonal field of view. These figures are calculated from the focal length and crop factor.
Which cameras does the Panasonic Lumix S 20mm F2.5 fit?
Any Leica L-mount camera, including Leica SL (Typ 601), Leica SL2, Leica SL2-S, Leica SL3, and Panasonic Lumix DC-S1 and 17 more.
Alternatives for Leica L from other brands
All Leica L lensesSame mount, overlapping focal range, closest maximum aperture first.
