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Canon 100-400mm f/4.5

The Canon EF 100-400mm f/4.5-5.6L is a telephoto zoom lens for the Canon EF autofocus mount, covering a 4x range from 100mm to 400mm with a variable maximum aperture of f/4.5 at the wide end and f/5.6 at the long end. As part of Canon's L-series professional line, it was designed for wildlife, sports and aviation photographers needing a versatile long-reach zoom on EF-mount SLR and DSLR bodies.

Auction data for this model is thin: a single UK saleroom hammer of £525 was recorded in April 2023, which sets the only datapoint we currently have for what a clean copy sells for at wholesale level. As of today in 2026, that figure should be treated as indicative rather than a firm market price, and condition, optical cleanliness and whether the lens is the original IS version or the later Mark II will materially affect value at auction. Buyers researching what a 100-400L is worth should weigh this hammer result against current dealer asking prices, which sit above auction levels once commission and warranty are factored in.

Variants

Select a variant to filter the sales history below.

Variant Years Edition Sales Price Range
IS II USM — — 6 £360 – £562
IS USM — — 5 £338 – £500
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Sales History

Prices shown are UK auction hammer results — the wholesale level achieved in the saleroom. Neither buyer’s nor seller’s commission is included. Dealer and retail asking prices are typically higher.

Prices updated: May 2026

Date Price Source Variant
May 2026 £460 Special Auction Services —
Mar 2026 £525 Flints Auctions IS II USM
Jan 2026 £562 Flints Auctions IS II USM
Jan 2026 £400 Flints Auctions IS USM
Jan 2026 £350 Flints Auctions IS USM
Aug 2025 £400 Flints Auctions IS USM
Feb 2025 £400 Harper Field Auctions —
Oct 2023 £360 Special Auction Services IS II USM
Apr 2023 £525 Flints Auctions —
Apr 2023 £380 Special Auction Services IS II USM
Apr 2023 £420 Special Auction Services IS II USM
Apr 2023 £400 Special Auction Services IS II USM
Jan 2023 £338 Flints Auctions IS USM
Feb 2021 £500 David Duggleby IS USM

Frequently asked questions

What is a Canon EF 100-400mm f/4.5-5.6L worth at UK auction?

The only verified UK auction hammer in our records is £525 from April 2023; with just one datapoint, this should be read as a guide rather than a settled market price.

How much does a Canon 100-400L sell for compared to retail?

Auction hammer prices exclude buyer's and seller's commission and tend to sit below dealer retail, so the £525 figure represents wholesale saleroom level rather than what a shop would ask.

Does the version of the 100-400L affect the price?

Yes — the original push-pull IS version and the later Mark II rotational zoom command different prices, so always confirm which variant is being offered before comparing values.

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