1.4xii or 1.4xiii extender

Started 11 months ago | Discussions thread
Richard Veteran Member • Posts: 4,162
Re: 1.4xii or 1.4xiii extender

John_Hoffman wrote:

Richard wrote:

The MKIII extender can also focus adjusted by Canon.

Interesting. What would they be adjusting?

You can mount a lens onto a camera, the focus maybe perfect.

You then mount a 1.4III Extender that could possibly be slightly out of focus so it's going to throw everything out.

Canon can electronically adjust the Extender to bring focus back to where it should be.

 Richard's gear list:Richard's gear list
Canon PowerShot G15 Canon EOS-1D Mark II Canon EOS-1D X Canon EF 800mm f/5.6L IS USM Canon EF 17-40mm f/4.0L USM +2 more
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