Reviews and Problems with Canon Extender EF 1 4x II
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Performs as advertised
Joyful 1, J&R
26 May 2010
Summary: I bought this extender for my wifes new 70-200mm f4.0L IS so she could get a little closer to birds, butterflies and the spring flora and fauna. She uses most of the pictures for her artwork and she is very pleased with the extra zoom. She can't wait for fall to do some wildlife pictures on our hunting trips. Today she was particularly impressed with the clarity of a butterfly that she wouldn't have been able to get without the 1.4X extender.
Pros: Consistent Output, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Strong Construction
Summary: While the Canon 1.4x teleconverter only works with several L lenses by design, the output from it when paired with any 70-200, 135, 300/4, or other acceptable lenses is outstanding, with no loss of clarity. The other key benefit is all EXIF data is reported to the image file for record and editing purposes, something not done by Tamron and some other tele-converters (depends on 3rd party brand and model).
Pros: Consistent Output, Durable, Easily Interchangeable, Fast / accurate auto-focus, Lightweight, Rugged, Strong Construction
Summary: I use the Canon EF 1.4X II Extender with a Canon EF 70-200mm f/4L USM lens. The extender boosts the telephoto enough to take excellent wildlife and "landscape feature" pictures without diminishing the speed of the lens combination too much. A great combination that is much less expensive and lighter than a more powerful Canon L telephoto lens.
Summary: This product is for the birds! Let me clarify. I enjoy photographing wildlife, especiallly birds. I use this extender with my Canon 100-400 zoom to increase my range. It works very well, it's compact, and has high quality optics.
Summary: I shoot a lot of things in nature but my passion is birds. With most birds, I need the Canon 1.4 EF Extender 11. It makes my 500 mm Canon lens even that much better. Would not want to go on safari without it.