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20mm Lenses

A 20mm lens gives a wide-angle field of view. It is a staple for landscapes, architecture and environmental portraits.

On APS-C a 20mm lens frames like about 30mm (Canon APS-C: 32mm) on full frame; on Micro Four Thirds it frames like 40mm.

We list 530 lenses that include 20mm: 68 primes and 462 zooms across 18 mounts, with a fastest aperture of f/1.4.

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20mm lenses

Laowa

20mm f/4 Zero-D Shift

20mm f/4.0 Pentax K

Pentax

smc Pentax-A 20mm f/2.8

20mm f/2.8 Pentax K

Pentax

smc Pentax-FA 20mm f/2.8

20mm f/2.8 Pentax K

Pentax

smc Pentax-M 20mm f/4

20mm f/4.0 Pentax K

Samyang

20mm f/1.8 ED AS UMC

20mm f/1.8 Pentax K

Sigma

20mm f/1.4 DG HSM Art

20mm f/1.4 Pentax K

Vivitar

20mm f/3.8 Wide Angle

20mm f/3.8 Pentax K

Voigtlander

Color Skopar 20mm F3.5 SLII Aspherical

20mm f/3.5 Pentax K

Tokina

AT-X 14-20 PRO DX 14-20mm f/2

14-20mm f/2.0 Pentax K

Tokina

AT-X 11-20 PRO DX 11-20mm f/2.8

11-20mm f/2.8 Pentax K
Sigma 10-20mm f/3.5 EX DC HSM

Sigma

10-20mm f/3.5 EX DC HSM

10-20mm f/3.5 Pentax K
Sigma 10-20mm f/4-5.6 EX DC HSM

Sigma

10-20mm f/4-5.6 EX DC HSM

10-20mm f/4.0 Pentax K

Pentax

smc Pentax-FA 17-28mm f/3.5-4.5 Fisheye

17-28mm f/3.5 Pentax K

Pentax

smc DA 12-24mm F4.0 ED AL (IF)

12-24mm f/4.0 Pentax K
Sigma 12-24mm f/4 DG HSM Art

Sigma

12-24mm f/4 DG HSM Art

12-24mm f/4.0 Pentax K
Sigma 12-24mm f/4.5-5.6 EX DG HSM

Sigma

12-24mm f/4.5-5.6 EX DG HSM

12-24mm f/4.5 Pentax K
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Sigma 12-24mm f/4.5-5.6 II DG HSM

Sigma

12-24mm f/4.5-5.6 II DG HSM

12-24mm f/4.5 Pentax K
Tokina AT-X 124 PRO DX 12-24mm f/4

Tokina

AT-X 124 PRO DX 12-24mm f/4

12-24mm f/4.0 Pentax K
Tokina AT-X 16-28 PRO FX 16-28mm f/2.8

Tokina

AT-X 16-28 PRO FX 16-28mm f/2.8

16-28mm f/2.8 Pentax K

Pentax

smc Pentax-DA 10-24mm f/3.5-4.5 ED AL [IF]

10-24mm f/3.5 Pentax K

Pentax

HD PENTAX-D FA 15-30mm F2.8 ED SDM WR

15-30mm f/2.8 Pentax K

Pentax

smc Pentax-FA 20-35mm f/4 AL

20-35mm f/4.0 Pentax K

Related focal lengths

20mm lenses by brand

20mm lenses by mount