Best telephoto lens for fujifilm x?

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From Fujifilm GF 250mm f/4 R LM OIS WR: Fujifilm GF 250mm f/4 R LM OIS WR: A prime lens by Fujifilm for Medium format (44 x 33) cameras, 250mm f/4. A stabilised telephoto prime, about 200mm equivalent.

From Fujifilm MKX 50-135mm T2.9: Fujifilm MKX 50-135mm T2.9: A zoom lens by Fujifilm for APS-C cameras, 50-135mm f/2.9. A manual-focus telephoto cinema zoom with geared rings, rated T2.9.

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