Best wildlife lenses for the Sony FX3

Sony FX3 · 2021 · 12.1 MP full-frame · 715 g · in-body stabilisation

8 wildlife lenses that fit the Sony FX3 (Sony E mount) — long reach and fast autofocus for birds and distant animals. Sorted brightest-aperture first; every spec from the manufacturer's catalog.

Start with the Sony FE 300mm f/2.8 GM OSS. At f/2.8 it is the brightest of the 8 wildlife Sony E lenses that fit the Sony FX3 — the full comparison is below.

Last verified 2026-09-01 · Sony E mount · Sony full-frame body

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Check the Sony FE 300mm f/2.8 GM OSS price on Amazon →

Focal	Lens	Buy	Max aperture	Weight	Filter	Type	Coverage	Best for
300mm	Sony FE 300mm f/2.8 GM OSS	Check price →	f/2.8	1470 g	—	prime	Full-frame	Sports & actionWildlifeTelephoto
400mm	Sony FE 400mm f/2.8 GM OSS	Check price →	f/2.8	2895 g	—	prime	Full-frame	Sports & actionWildlifeTelephoto
600mm	Sony FE 600mm f/4 GM OSS	Check price →	f/4	3040 g	—	prime	Full-frame	WildlifeSports & actionTelephoto
70-300mm	Sony FE 70-300mm f/4.5-5.6 G OSS	Check price →	f/4.5-5.6	854 g	72mm	zoom	Full-frame	TelephotoWildlifeSports & actionTravel
100-400mm	Sony FE 100-400mm f/4.5 GM OSS	Check price →	f/4.5	1840 g	95mm	zoom	Full-frame	Sports & actionWildlifeTelephotoPro standard zoom
100-400mm	Sony FE 100-400mm f/5.6-8 OSS	Check price →	f/5.6-8	654 g	67mm	zoom	Full-frame	TelephotoWildlifeSports & actionBudget
200-600mm	Sony FE 200-600mm f/5.6-6.3 G OSS	Check price →	f/5.6-6.3	2115 g	95mm	zoom	Full-frame	TelephotoWildlifeSports & action
400-800mm	Sony FE 400-800mm f/6.3-8 G OSS	Check price →	f/6.3-8	2475 g	105mm	zoom	Full-frame	WildlifeTelephotoSports & action

One limit of this table: it lists only Sony E lenses that mount natively on the Sony FX3 — lenses fitted through an adapter are not included here. See which mounts adapt to which.

Weight & weather sealing on the Sony FX3

On long approaches the decision is often made by weight, not aperture. Published weights for 8 of the 8 lenses above:

Packing light? The lightest here is the Sony FE 100-400mm f/5.6-8 OSS at 654g.

Weights and sealing as published for each lens — 0 from the manufacturer's own spec page, 8 from a published lens database or review quoting the maker's figure (per-lens source recorded in the dataset) · methodology

FAQ

What is the best wildlife lens for the Sony FX3?
Sony FE 300mm f/2.8 GM OSS (300mm f/2.8) is the standout wildlife option that fits the Sony FX3. 8 wildlife Sony E lenses fit in total — compare them below.

Do these wildlife lenses fit the Sony FX3?
Yes — every lens here is a Sony E mount lens, so it fits the Sony FX3 and covers its full-frame sensor.

What is the lightest wildlife lens for the Sony FX3?
The Sony FE 100-400mm f/5.6-8 OSS at 654g (manufacturer-published weight). Weights for 8 of the 8 lenses on this page are in the weight table above.

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All lenses for the Sony FX3 · the same use across mounts: Wildlife lenses for Sony E · all cameras

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