Does the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR take a teleconverter?

Fujifilm X · 70-300mm f/4-5.6 · thread and mount data verified 2026-09-02

2 teleconverters are supported. A teleconverter multiplies the focal length and costs you light — and on a crop body the framing multiplies again.

Both converters are supported and both stay usable: 98-420mm at f/5.6-8 with the 1.4x, 140-600mm at f/8-11 with the 2x. On a lens this fast the 2x is the unusual case of a 2x that does not cost you autofocus.

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Teleconverter	Supported	Reach	Max aperture	On APS-C	On Micro Four Thirds
Fujifilm XF1.4X TC WR	Yes — Firmware Ver.1.00 or later. No restriction stated. Becomes 98-420mm f/5.6-8.	98-420mm	f/5.6-8	147-630mm	—
Fujifilm XF2X TC WR	Yes — Firmware Ver.1.00 or later. No restriction stated. Becomes 140-600mm f/8-11. AUDIT-VERIFIED verbatim.	140-600mm	f/8-11	210-900mm	—

At f/8-11 some older bodies restrict autofocus to the centre point.

What each converter gives you

Fujifilm XF1.4X TC WR — 98-420mm at f/5.6-8 on this lens, autofocus retained.

Fujifilm XF2X TC WR — 140-600mm at f/8-11 on this lens, autofocus retained.

The lens itself: Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR · every Fujifilm X lens: Fujifilm X 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 2026-09-02. 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