Canon Canon FD Prime

New FD 20mm f/2.8

20mm
f/2.8
Prime
305 g
Min focus 0.25 m

Quick answer

The Canon New FD 20mm f/2.8 is a ultra-wide prime lens covering 20mm at f/2.8 for the Canon FD mount. Its bright maximum aperture handles indoor and evening light reasonably well.

About this lens

The Canon New FD 20mm f/2.8 is a manual-focus wide-angle prime lens covering 20mm at f/2.8 for Canon FD mount cameras. The wide view suits landscapes, architecture and environmental shots.

Canon New FD 20mm f/2.8 specifications

Brand: Canon
Mount: Canon FD
Focal length: 20mm
Maximum aperture: f/2.8
Lens type: Prime
Format coverage: full-frame
Released: 1979
Optical construction: 10 elements in 9 groups
Autofocus motor: none
Minimum focus distance: 0.25 m
Maximum magnification: 0.13x
Filter thread: 72 mm
Weight: 305 g
Length: 58 mm
Diameter: 76.5 mm

Specification source: en.wikipedia.org

What can you shoot with the Canon New FD 20mm f/2.8?

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.

Full-frame equivalent and field of view

Calculated from the focal length and crop factor (adapted mount, so sensor size depends on your camera). Not measured.

Sensor	Crop	Equivalent	Horizontal FOV	Diagonal FOV
Full frame	1.0x	20mm	84°	94.5°
APS-C	1.6x	32mm	58.7°	68.1°
Micro Four Thirds	2.0x	40mm	48.5°	56.8°

Try the field-of-view calculator

Frequently asked questions

What mount does the Canon New FD 20mm f/2.8 use?

It uses the Canon FD mount, so it fits Canon FD cameras directly and can be used on other systems through a mount adapter.

What is the focal length of the Canon New FD 20mm f/2.8?

It is a fixed 20mm lens with a maximum aperture of f/2.8. That makes it a ultra-wide lens.

Is the Canon New FD 20mm f/2.8 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/2.8.

What is the Canon New FD 20mm f/2.8 equivalent on a crop sensor?

On APS-C (1.6x crop) it frames like 32mm on full frame, with a 58.7° horizontal and 68.1° diagonal field of view. On Micro Four Thirds (2x crop) it frames like 40mm on full frame, with a 48.5° horizontal and 56.8° diagonal field of view. These figures are calculated from the focal length and crop factor.