Canon EF 100-400mm f/4.5-5.6 L IS USM II : Specifications and Opinions

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Lenses
Lenses Canon
Canon EF 100-400mm f/4.5-5.6 L IS USM II

Canon EF 100-400mm f/4.5-5.6 L IS USM II, front

Canon EF 100-400mm f/4.5-5.6 L IS USM II, back

Canon EF 100-400mm f/4.5-5.6 L IS USM II, top

The Canon EF 100-400mm f/4.5-5.6 L IS USM II is a tele lens for FF and APS-C, manufactured from 2014 to 2025 (discontinued). The focus is done by Ultrasonic AF Motor (Ring-USM), it has image stabilization. The average price was 2199 €;

223 users have given it an average vote of 9.7 out of 10.

MOUNT

This lens is available with the following mounts:

Canon EF: this lens is compatible with reflex fullframe and APS-C Canon EF.

Specifications
Focal lenght	100-400 mm
Angle of view	24.4 - 6.2°
Format	FF, APS-C
Max. aperture	f/4.5-5.6
Aperture blades	9
Lenses/Groups	21 elements in 16 groups
Min. focus distance	0.98 meters
Reproduction ratio	0.31x
Features
Zoom type	Ring, external
Stabilization	Yes (built in lens)
Focus	Ultrasonic AF Motor (Ring-USM)
Internal Focus	Yes
Built and notes
Tripod ring	Yes
Extenders	Yes
Filters	77 mm
Lens hood	Yes, supplied
Weather sealing	Yes
Weight	1570 g
Dimensions	94 x 193 mm
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Reviews

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Petervdh

sent on 03 Ottobre 2020

Pros: Extremely sharp and contrasty, excellent IS, fast accurate focusing and minimum focusing distance. Adapts well to the Canon 1.4x III tele-converter.Cons:

Cons: Occasional purple fringing on high-contrast subjects. Tripod collar not removable. Expensive in South Africa @ ZAR 39,695-00.

Opinion: Very well thought out lens from Canon. I emediant love the lens when I first used it. Being a non push pull zoom keeps ones hand in the same position for better stabilising the lens. I had the version 1 with which I was not happy with. It can be a bit short at the long end for photographing wildlife and birds but it pairs well with the newest 1.4 converter from Canon.

Johnmwright

sent on 09 Settembre 2016

Pros: Extremely sharp and contrasty, portable, takes the Canon 1.4x III tele-converter well, fast accurate focusing, excellent IS (image stabilization), and the minimum focus distance is 1 meter.

Cons: Occasional purple fringing on high-contrast subjects. Bokeh isn't as nice as a prime, of course (but it isn't terrible). I wish the tripod collar was removable. Expensive.

Opinion: This is the best tele-zoom I've ever used. It is an improvement in every way over the original 100-400. It is sharper, faster focusing, more accurate, has better stabilization, and handles the 1.4x TC III well. However, the best feature for me is the 1m close focus (1/3 life size at 400mm), which lets me get closer to frogs than before. While the bigger faster super-teles have advantages, this is the best portable tele available for Canon. I've used the original 70-200 f/2.8L IS, 300f/4L, original 100-400L... the 100-400 mark II is better than all of them... except the 300/f4L is smaller/lighter. None of the other lenses I listed are bad (they are all excellent), but the 100-400 mark II is noticeably better.

The following opinions have been automatically translated with Microsoft Translate.

Angelo Bacchio

sent on 09 Agosto 2026

Pros: All

Cons: Window for additional lens adjustment.

Opinion: I own one of the first specimens born by a Canon mother. Nothing to envy to the RF 100-500. A blade in micro detail even with 1.4X III that I mounted on the first day and practically remains welded for photographic hunting. Removed for a sporting event, GP1 Monza, I was appalled by the improvement in both AF speed and definition. Goal "for life"!

DavideOtta

sent on 15 Gennaio 2026

Pros: sharpness, easy handling, weight/bulk, minimum distance of MAF

Cons: Tripod Bracket

Opinion: Super lens, it's not my first choice since I own the 600 F4, but it's really good, a very good alternative, very versatile and sharp. Excellent and silent stabilizer. Also good for macro photography. The lightness compared to the super teles makes it a good friend during the most difficult trips. The only flaw for me is the tripod bracket, small and too close to the barrel, I struggle to insert my fingers.

Maurizio Catti

sent on 23 Luglio 2025

Pros: Sharpness, AF speed, weight, convenience, focal range, enhanced with RF adapter

Cons: for me no one

Opinion: It is always in the backpack, whether you are doing a safari, or going to the north pole, great sharpness and contrast even mounting the 1.4x III teleconverter, an excellent all-rounder in every aspect that, as I said, in the transition to mirrorless with the original adapter has gained in speed and precision of the af so much so that I resold the 100-500 RF and I bought the 100-400 ef II for the second time, losing 100 mm but gaining 1000 euros and 1/3 stop of maximum brightness.

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Reviews
Lenses
Lenses Canon
Canon EF 100-400mm f/4.5-5.6 L IS USM II

Canon EF 100-400mm f/4.5-5.6 L IS USM II : Specifications and Opinions

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Photos taken with Canon EF 100-400mm f/4.5-5.6 L IS USM II