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What is a 1.4 x extender?
The Canon EF 1.4x II Extender is an easy and very affordable way to noticeably extend the reach (focal length) of compatible Canon L Series lenses (and a few additional lenses). The Canon EF 1.4x II Extender mounts between the compatible lens and body, and multiplies the focal length settings of your lens by 1.4x.
What does a Canon 1.4 extender do?
The Extender increases the focal length of a compatible lens by 1.4x, and correspondingly decreases the lens’s maximum effective aperture by one stop. A 70-200mm f/2.8 lens thus becomes a 98-280mm f/4 lens, and a 400mm f/5.6 lens becomes a 560mm f/8 lens.
What does a 2x teleconverter do?
Teleconverters can be used to increase the apparent focal length of a lens but at the cost of overall sharpness and lens speed. A 2x teleconverter (such as the Nikon TC-20EII AF-S teleconverter) will double the apparent focal length at the expense of two stops of light.
Does autofocus work with 1.4 x extender?
In the question that prompted this article to be written (a Canon 100-400 f/4-5.6 and a 1.4x teleconverter), the answer is no. Autofocus will not work, or at least will not work well.
Can I stack Canon extenders?
So you can stack as many Extender 2× II together as you like, and you can stack any Canon Extender between an Extender 2× II and the camera body.
What do Canon extenders do?
Extenders, generally known as teleconverters, increase the effective focal length of lenses. Canon Extenders are available in two strengths, 1.4x and 2x. As the names suggest, the 1.4x Extender increases the focal length of your lens by a factor of 1.4, and the 2x by a factor of 2.
What is a camera extender used for?
A teleconverter or extender (as Canon calls them) is a gadget that fits between the lens and the camera body to magnify the image made by the lens. A teleconverter sounds like the ideal solution for getting closer to a subject with your lens.
Do you lose quality with a teleconverter?
Teleconverters will also reduce image quality because, while magnifying the image, they will also magnify the effects of any aberrations in your original lens. Sharpness and contrast are the most likely to suffer and ghosting and flare can go from being minor irritants you can mostly deal with to serious problems.
Are camera extenders worth it?
While teleconverters give you decent image quality, they still cause the photos to lose some of it. However, they are still much better than cropping the image, and they preserve way more quality than cropping. This probably goes without saying, bit when you’re using a longer lens, there’s more camera shake.