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rickmp001 · 07-13-2026

Hello,Is the Canon Extender EF 2X III compatible at all with the EF 100-300 F5.6L on a Canon EOS R body with Mount Adapter EF EOS-R? This is not on the compatibility list, but I was wondering if this combination would work, even if only in manual fo...

rickmp001 · 07-13-2026

Thanks for posting the images. I realize that lens is the most ancient L lens in existence. Looking to replace it eventually with a more modern lens.

rickmp001 · 07-13-2026

Thanks for your reply. I was merely looking to see if it was even mountable without sustaining damage, not as a serious solution to imaging. I’m fully aware of this lens being the most ancient L lens in existence; it was merely a budget solution for ...

rickmp001 · 07-13-2026

Using a crop sensor only has effect on angle of view, not magnification/image size.

rickmp001 · 07-13-2026

Thank you for your reply. As this is the very first "L" lens in the EF lineup, I realize its limitations, but until a more suitable replacement is in the cards, I'll live with it and try to work on image correction.

rickmp001 · 07-13-2026

Thank you for your reply. I realize the lens has many deficiencies, but until I can justify spending on a more suitable replacement, I'll live with it.

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Extender EF 2x III compatible with EF 100-300 f/5.6L on EOS R?

Re: Extender EF 2x III compatible with EF 100-300 f/5.6L on EOS R?

Re: Extender EF 2x III compatible with EF 100-300 f/5.6L on EOS R?

Re: Extender EF 2x III compatible with EF 100-300 f/5.6L on EOS R?

Re: Extender EF 2x III compatible with EF 100-300 f/5.6L on EOS R?

Re: Extender EF 2x III compatible with EF 100-300 f/5.6L on EOS R?