7D w/ Canon EF 500mm f/4.0L IS II USM vs. 2X II on a 70-200

Started Feb 14, 2013 | Discussions thread
Jeff Peterman
MOD Jeff Peterman Forum Pro • Posts: 12,472
Re: 7D w/ Canon EF 500mm f/4.0L IS II USM vs. 2X II on a 70-200

From all I've seen, the 1.4x adapter cause some reduction in image quality and with only one stop loss of light, but the 2x adapter should be reserved for times when there really isn't any other option.

It might be worth considering a 1.4x adapter (giving you almost 300mm) but I'd stay away from the 2x.

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Jeff Peterman, Moderator 7D and Phone/Tablet forums.
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