We and our partners use cookies to give you the best online experience, including to personalise advertising and content. Data about your interaction with this site and the ads shown to you may be shared with companies involved in the delivery and/or personalisation of ads on this site and elsewhere online.

Compare 3 products

Close
Canon Extender EF 1.4x II Teleconverter
Canon Extender EF 1.4x II
Close
Canon Extender EF 1.4x III Teleconverter
Canon Extender EF 1.4x III
Close
Olympus EC-20 Teleconverter
Olympus EC-20
Editiorial reviews
2
2 editorial reviews
Looking for a Canon lens review? Read on to find out what we uncovered in our objective optical lab tests.Read more
The Canon EF 200-400mm f/4L IS USM Extender 1.4x comes complete with an internal tele-converterRead more
Read editorial reviews
1
1 editorial reviews
Looking for a Canon lens review? Read on to find out what we uncovered in our objective optical lab tests.Read more
Read editorial reviews
3
3 editorial reviews
Find out if the Olympus lens is right for you.Read more
After being able to play with this new device for a little bit I am now ready to give my opinion on it. First off losing 2 stops of light is difficultRead more
Transform a 300mm Micro Four Thirds lens into a 1200mm full-frame equivalentRead more
Read editorial reviews
User rating
39
4.0 out of 5
39 user ratings
5 stars
33 %
4 stars
33 %
3 stars
33 %
2 stars
0 %
1 stars
0 %
43
4.1 out of 5
43 user ratings
5 stars
37 %
4 stars
39 %
3 stars
20 %
2 stars
2 %
1 stars
0 %
35
4.2 out of 5
35 user ratings
5 stars
31 %
4 stars
60 %
3 stars
8 %
2 stars
0 %
1 stars
0 %

General

Mount typeCanon EFCanon EFFour Thirds

Dimensions

Weight7.76 oz7.83 oz7.94 oz
Diameter2.87 in2.83 in2.68 in
Length1.07 in1.06 in1.61 in

Optics

Elements577
Groups4 pc35

Focus

Maximum magnification1.4x1.4x2x
Full time manualN\A
N/A
N/A

Often compared with Canon Extender EF 1.4x II

Canon Extender EF 1.4x II Teleconverter
Canon Extender EF 2x III
CanonExtender EF 1.4x II
CanonExtender EF 2x III
Canon Extender EF 1.4x II Teleconverter
Canon Extender EF 1.4x III
CanonExtender EF 1.4x II
CanonExtender EF 1.4x III

Often compared with Canon Extender EF 1.4x III

Canon Extender EF 1.4x III Teleconverter
Canon Extender EF 1.4x II
CanonExtender EF 1.4x III
CanonExtender EF 1.4x II