1. Home
  2. Gear
  3. Lenses
  4. Voigtländer
  5. Voigtländer Color Skopar 20mm F3.5 SLII Aspherical

Voigtländer Color Skopar 20mm F3.5 SLII Aspherical

20 mm · f/3.5 · Pentax KAF4, Canon EF

The Voigtländer Color Skopar 20mm F3.5 SLII Aspherical is a 20 mm prime lens with a maximum aperture of f/3.5 for the Pentax KAF4, Canon EF, Nikon F AF mounts. Here are its field of view on different sensors, hyperfocal distances, Milky Way exposure limits and the cameras it fits.

Focal length
20 mm
Max aperture
f/3.5
Mount
Pentax KAF4
Designed for
Full frame

Field of view by sensor

SensorDiagonal angle of view35 mm equivalent
Full frame94.5°20 mm
APS-C (1.5×)70.5°31 mm
Canon APS-C (1.6×)68.1°32 mm
Micro Four Thirds56.8°40 mm

Hyperfocal distance

Focal lengthf/5.6f/8f/11f/16
20 mm2.4 m1.7 m1.2 m0.9 m

Circle of confusion 0.030 mm (sensor size the lens is designed for).

Longest exposure for sharp stars

CameraNPF rule (wide open)500 rule
Full frame (24 MP)15.0 s @ f/3.525.0 s
Full frame (45 MP)12.7 s @ f/3.525.0 s
APS-C (24 MP)12.0 s @ f/3.516.3 s

Cameras that fit (264)

Where to buy

B&H PhotoAmazonKEH (used)MPB (used)

FAQ

What is the Voigtländer Color Skopar 20mm F3.5 SLII Aspherical equivalent to on APS-C?
About 30 mm (1.5×) or 32 mm on Canon APS-C (1.6×).
Which cameras is the Voigtländer Color Skopar 20mm F3.5 SLII Aspherical compatible with?
It fits Pentax K-1, Pentax K-1 II, Pentax K-70, Canon EOS 5DS, Canon EOS 5DS R and more (see the full list above).