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Canon FD 20mm f/3.5 Macro Lens

The Canon 20mm f/3.5 Macro is a 20mm f/3.5 lens designed for Canon FD mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Canon FD 20mm f/3.5 Macro Lens

Canon FD 20mm f/3.5 Macro Lens

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Lens Overview — Canon 20mm f/3.5 Macro

The Canon FD 20mm f/3.5 is a prime wide-angle lens built for the Canon FD mount, designed to cover full-frame SLR cameras. With a fixed focal length of 20mm and a maximum aperture of f/3.5, this lens sits in the wide-angle category and is classified as a macro type, making it an interesting option for photographers who want to explore close-up work alongside traditional wide-angle shooting. The lens is entirely manual focus, which is consistent with the Canon FD mount era and suits deliberate, methodical shooting styles.

It accepts 72mm filters, giving photographers options for polarizers, ND filters, and other accessories. Weighing in at 320g, it offers a reasonably manageable form factor for a wide-angle prime of this nature. The Canon FD mount means this lens is compatible with Canon FD system SLR cameras, and with the use of appropriate adapters, it can be mounted on a variety of modern mirrorless systems for manual use.

Image stabilization is not present, which is standard for a lens of this vintage. For collectors, film shooters, and adapted-lens enthusiasts, this Canon FD 20mm f/3.5 Macro represents a distinctive and specialized option in the wide-angle prime category.

Key Features — Canon 20mm f/3.5 Macro

20mm Prime Focal Length: Fixed wide-angle perspective suits landscape, architecture, and environmental photography on full-frame SLR bodies.

Full-Frame Coverage: Designed to cover the full 35mm frame with no vignetting on Canon FD SLR cameras.

Close Focus Capability: Allows closer minimum focus distances than a standard wide-angle prime, suited to detail-oriented shooting at wider angles.

f/3.5 Maximum Aperture: Provides usable light-gathering for a vintage wide-angle lens, suitable for controlled shooting conditions.

Canon FD Mount: Natively fits Canon FD and FDn SLR bodies, and can be adapted to modern mirrorless systems using widely available FD adapters.

Manual Focus Only: Fully manual operation suits deliberate, methodical workflows common to adapted-lens and film photography use.

Lens Specifications — Canon 20mm f/3.5 Macro

Canon 20mm f/3.5 Macro full specifications
SpecDetail
Use CasesMacro, Landscape, Architecture
Lens TypeMacro
FormatFull Frame
Zoom/PrimePrime
Focal Length20mm
Maximum Aperturef/3.5
Camera SystemSLR
Lens MountCanon FD
AutofocusNo
Focus TypeManual
Image StabilizationNone
Filter Thread72mm

Description — Canon 20mm f/3.5 Macro

The Canon FD 20mm f/3.5 Macro is a prime wide-angle lens built around the Canon FD mount, designed to cover full-frame SLR cameras. With a fixed 20mm focal length and a maximum aperture of f/3.5, it falls into the wide-angle focal length range while also carrying a macro classification. Focusing is entirely manual, consistent with the Canon FD system's design era, placing control firmly in the photographer's hands.

The lens features a 72mm filter thread, accommodating a broad range of photographic filters. At 320g, it maintains a workable weight for a wide-angle prime. Image stabilization is not present, so a steady hand or stable support is recommended in challenging lighting. This lens is a considered choice for Canon FD system shooters, film photographers, and manual-lens enthusiasts working on adapted mirrorless setups who value the specific combination of wide-angle perspective and macro capability.

Pros — Canon 20mm f/3.5 Macro

  • ✓Full-frame coverage suits Canon FD SLR systems without crop concerns
  • ✓Wide 20mm focal length opens up expansive compositional possibilities for wide-angle work
  • ✓Macro classification offers close-up shooting capability beyond a standard wide-angle prime

Cons — Canon 20mm f/3.5 Macro

  • ✗Manual focus only — no autofocus capability, requiring more deliberate shooting technique
  • ✗Maximum aperture of f/3.5 is modest, limiting performance in lower light conditions
  • ✗No image stabilization, which combined with a manual-only focus system demands steady technique

Videos — Canon 20mm f/3.5 Macro

Pros and Cons of Canon FD Lenses — Matt Rice

Resources & Downloads — Canon 20mm f/3.5 Macro

Frequently Asked Questions — Canon 20mm f/3.5 Macro

What cameras is this lens natively compatible with?+
This lens uses the Canon FD mount and is natively compatible with Canon FD-mount SLR cameras. It is designed to cover full-frame sensors or film formats used in those systems.
Does this lens support autofocus?+
No, this lens is manual focus only. There is no autofocus mechanism, so all focusing must be done by hand using the focus ring.
What filter size does this lens accept?+
The lens has a 72mm filter thread, which is a common size and compatible with a broad selection of polarizing, UV, and neutral density filters.
How heavy is this lens?+
The Canon FD 20mm f/3.5 Macro weighs 320g, making it a reasonably compact option for a wide-angle prime lens in the Canon FD lineup.
Does this lens have image stabilization?+
No, image stabilization is listed as none in the specifications. Photographers should account for this when shooting in lower light or at slower shutter speeds.
Can this lens be used on modern mirrorless cameras?+
While the lens natively fits Canon FD-mount SLR cameras, it can potentially be adapted to modern mirrorless systems using a third-party adapter. However, it will remain manual focus only, as specified in the lens data.

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