Best macro lenses for the Canon EOS R6 Mark III

5 macro lenses that fit the Canon EOS R6 Mark III (Canon RF mount) — true close-up magnification for detail work. Sorted brightest-aperture first; every spec from the manufacturer's catalog.

Start with the Canon RF 24mm f/1.8 Macro IS STM. At f/1.8 it is the brightest of the 5 macro Canon RF lenses that fit the Canon EOS R6 Mark III — the full comparison is below.

Last verified 2026-06-21 · Canon RF mount · Canon full-frame body

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Focal	Lens	Buy	Max aperture	Type	Coverage	Best for
24mm	Canon RF 24mm f/1.8 Macro IS STM	Amazon →	f/1.8	prime	Full-frame	Wide-angle Astrophotography Street Macro
35mm	Canon RF 35mm f/1.8 Macro IS STM	Amazon →	f/1.8	prime	Full-frame	Street Everyday Macro
85mm	Canon RF 85mm f/2 Macro IS STM	Amazon →	f/2	prime	Full-frame	Portrait Macro Budget
100mm	Canon RF 100mm f/2.8 L Macro IS USM	Amazon →	f/2.8	prime	Full-frame	Macro Portrait
100mm	Laowa 100mm f/2.8 2x Ultra Macro APOMF	Amazon →	f/2.8	prime	Full-frame	Macro Portrait

Weight & weather sealing on the Canon EOS R6 Mark III

On long approaches the decision is often made by weight, not aperture. Manufacturer-published weights for 5 of the 5 lenses above:

Lens	Weight	Weather sealing
Canon RF 24mm f/1.8 Macro IS STM	270g	None claimed
Canon RF 35mm f/1.8 Macro IS STM	305g	None claimed
Canon RF 85mm f/2 Macro IS STM	500g	None claimed
Laowa 100mm f/2.8 2x Ultra Macro APO	650g	None claimed (Laowa publishes 650g for RF/Z/FE mounts)
Canon RF 100mm f/2.8 L Macro IS USM	685g	Weather-sealed

Packing light? The lightest here is the Canon RF 24mm f/1.8 Macro IS STM at 270g. The lightest weather-sealed option is the Canon RF 100mm f/2.8 L Macro IS USM at 685g.

Weights and sealing from each manufacturer's published spec sheet (per-lens sources recorded in the dataset) · methodology

FAQ

What is the best macro lens for the Canon EOS R6 Mark III?
Canon RF 24mm f/1.8 Macro IS STM (24mm f/1.8) is the standout macro option that fits the Canon EOS R6 Mark III. 5 macro Canon RF lenses fit in total — compare them below.

Do these macro lenses fit the Canon EOS R6 Mark III?
Yes — every lens here is a Canon RF mount lens, so it fits the Canon EOS R6 Mark III and covers its full-frame sensor.

What is the lightest macro lens for the Canon EOS R6 Mark III?
The Canon RF 24mm f/1.8 Macro IS STM at 270g (manufacturer-published weight). The lightest weather-sealed option is the Canon RF 100mm f/2.8 L Macro IS USM at 685g. Weights for 5 of the 5 lenses on this page are in the weight table above.

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All lenses for the Canon EOS R6 Mark III · the same use across mounts: Macro lenses for Canon RF · all cameras