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Canon EF 1.4x III Extender

Canon EF 1.4x III Extender
alaAverage 5

8 reviews

Nov, 2015

  • No negative mentions yet

alaTest has collected and analyzed 8 reviews of Canon EF 1.4x III Extender. The average rating for this product is 5.0/5, compared to an average rating of 4.4/5 for other Lenses & Filters for all reviews. People are impressed by the reliability and size. The price and usability are also mentioned favorably.

usability, price, size, reliability

On average, users rate this product 100/100.

Review analysis

(Based on 8 reviews)

1 expert reviews

User Reviews  

Review Ratings

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Showing 1 - 4 of 4 Show Reviews: in English | in other languages (4)

Expert review by: Bryan Carnathan (

Canon EF 1.4x III Extender


The Canon EF 1.4x III Extender mounts between your Canon EOS Digital SLR and a compatible lens(primarily Canon L Series lenses), extending the focal length of the lens by a noticeable 1.4x.The 1.4x III is a small and light addition to your kit, an only...

While I don't use extenders a big percentage of the time, I often have the Canon EF 1.4x III Extender along with me.The Canon EF 1.4x III Extender extends the reach of your sharp and compatible Canon lenses for a small image quality penaltyand a...

Jan, 2011

Consumer review by: Judith (



This works superbly with my 70-200mm L IS f4 lens. Although the lens is now converted into a f5.6 lens it continues to autofocus and perform brilliantly. I used it to take some great pictures (including one of a crow) in my back garden (some 30ft away)...

Great Picture Quality","Works sublimely

Jun, 2012

Consumer review by: Mr F (

Excellent product


Canon quality

Durable","Great Features","Great Picture Quality","Lightweight","Simple Controls

Feb, 2012

Consumer review by: Roubs (

Seriously a nice accessory to have!


I own a 70-200 mm f4 and found that I needed that extra length in zoom for specific photographs. I decided to purchase this extender and to be honest it did the job. However the aperture is disadvantaged and the lens with the extender needs a great...

Extends very well","Lightweight","Price","Well built quality

Looses aperture","Not well in dark

Dec, 2011