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Sony Unveils Fast E-Mount 20mm Share This on LinkedIn   Tweet This   Forward This

25 February 2020

Sony has announced its latest full-frame E-mount prime: a compact, 20mm f1.8 G that weighs 13.2 oz. The full-frame design proves a 30mm equivalent on APS-C cameras.

It features two advanced aspheric to reduce distortion and three extra-low dispersion elements to handle color fringing and chromatic aberration. The silent CD focus motor can achieve focus as close as 7.5 inches.

A Nano AR coating has been applied to minimize surface reflections, flare and ghosting. A Flourine coating on the front element resists fingerprints, dust and moisture.

Customizable focus hold buttons on the lens barrel provide tactile control and rapid access to select settings.


Highlights of the new prime include:

  • Sony E-Mount
  • Full frame 20mm, APS-C 30mm
  • Fast f1.8 aperture
  • Compact and lightweight


Specifications for the 20mm include:

Mount Sony E-Mount
Focal Length 20mm
Aperture f1.8 to f22
9 rounded diaphragm blades
Angle of View 94° full frame
70° APS-C
Minimum Focus 7.5 inchs
Magnification 0.22x
Optical Design 14 elements in 12 groups
2 aspherical elements
3 extra-low dispersion elements
Autofocus Yes
Image Stabilization No
Filter Thread 67mm
Dimensions 3.0 x 3.375 inches
Weight 13.2 oz.


Adorama and B&H are both now accepting pre-orders for $898.

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