Does the Canon RF 200-800mm f/6.3-9 IS USM take a teleconverter?

Canon RF · 200-800mm f/6.3-9 · thread and mount data verified 2026-08-29

One teleconverter is supported. A teleconverter multiplies the focal length and costs you light — and on a crop body the framing multiplies again.

Only the 2x is supported here, and it lands at f/13-18. That is dark enough that autofocus is restricted on many bodies — worth checking your body's AF aperture limit before spending.

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Teleconverter	Supported	Reach	Max aperture	On APS-C	On Micro Four Thirds
Canon RF Extender 2x	Yes — Compatible across the entire zoom range. The resulting f/12.6-18 is computed, not a Canon figure. AUDIT-VERIFIED verbatim.	400-1600mm	f/13-18	640-2560mm	—

At f/13-18 autofocus is limited on many bodies (often centre-point only). Check your body's AF aperture limit.

What each converter gives you

Canon RF Extender 2x — 400-1600mm at f/13-18 on this lens.

The lens itself: Canon RF 200-800mm f/6.3-9 IS USM · every Canon RF lens: Canon RF lens index · all teleconverter compatibility

Compatibility sourced from the manufacturers' own published teleconverter compatibility statements (manufacturer teleconverter compatibility statements (Sony, Canon USA, Nikon, Fujifilm, Sigma, Panasonic, OM System) — each row carries its own source URL) and verified 2026-08-29. Reach and aperture figures are computed from the lens's own published focal length and maximum aperture — a 1.4x multiplies focal length by 1.4 and costs 1 stop; a 2x multiplies by 2 and costs 2 stops. Lenses whose compatibility we could not verify from a manufacturer statement are omitted rather than guessed. Methodology