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

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

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 €;

218 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
Buy
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Reviews

What do you think about this lens?

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Petervdh

sent on October 03, 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 September 09, 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 Google Translate.

Maurizio Catti

sent on July 23, 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.

Doriano Ciardo

sent on November 15, 2024

Pros: Great all-rounder for sharpness and range.

Cons: Heavy

Opinion: One of the heaviest optics I've ever had, I thought the 28-70 was ignorant but this one beats it in every sense (it would be 100 gr. difference but it seems more). The metal of the barrel denotes the use for which it was designed. Very professional optics with an excellent stabilizer and above average glass quality. High performance over the entire range exploited by the R5mk2 and R3. With the R adapter you don't notice the imbalance, it's already full-bodied.

Enzo-Spotter

sent on March 01, 2024

Pros: Being Canon

Cons: For now, none

Opinion: I wanted to replace the Tamron 100 - 400 Di VC USD. In short, the difference in quality is perceptible in all conditions. I take aeronautical photos and often push to extreme focal lengths, I have been able to see that at 400mm it has no comparison with the Tamron which already from 300mm suffers from excessive softness of the images. Super stabilization even handheld. Of course, the weight does not play in favor of the Canon and the price, of course, is not at all comparable (the Tamron costs 1200€ less). On the other hand, that extra stop in favor of the Canon plays a fundamental factor in favor of the Canon optics. I use it on both an APSC and a full-frame. On the APSC I noticed a greater decay of quality at the upper extreme focal length, but I think it depends on the size of the sensor.

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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