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Viltrox Speedbooster - Compatibility with my Lenses

Started Dec 16, 2018 | Discussions thread
XavierE New Member • Posts: 1
Re: Viltrox Speedbooster - Compatibility with my Lenses

I have the Viltrox Speedbooster EF-EOS M2 for my canon M50 M2. When attaching the Canon EF 70-200mm IS USM ii to this booster and body the camera reads F/00 and will not switch to autofocus. When using the Viltrox EF-EOS M adapter the lenses operates fine. What Am I able to do to have this speed booster work with this lens?

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