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Canon Extender EF 1.4x III Review -

Started Feb 6, 2017 | User reviews thread
RS_RS Senior Member • Posts: 1,788
Re: Canon Extender EF 1.4x III Review -

Marco Nero wrote:

RS_RS wrote:

.
.
The CONS:
* Not inexpensive.
* Only works with SOME lenses (Telephoto).
* Can no longer be stacked with EF 2x III without a 'spacer'.

This is not the fault of the 1.4× III but of the 2× III. You can stack the 1.4× III with the 2× II.

You can - and they ought to fit... but the EF 2x Mk II has noticeably inferior optical quality compared to the EF 2x Mk III... so I'm not sure why anyone would want to do this. I'm tempted to buy the 2x III and was just looking at one today. I probably Just need something to motivate me to drop the cash.

-- hide signature --

Regards,
Marco Nero.

The 2× Extenders have always been a bit marginal, apparently working best with the Big White Lenses, and tests suggest that there has indeed been an IQ improvement from each version to the next. Your incentive for buying the 2× III is that it takes f/8 AF coverage above the default with the 200~400/4. What? You don't have one of those yet?

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