EOS R can't do highspeed continuous shooting with EF adapter

[wlr0117]

Help!  I recently purchased a Canon R and am using the mount adapter for my EF lenses.  I can not do any high speed continuous shooting!... Is this not possible with the adapter??  I have confirmed the the Dual Pixel Raw is disabled already.  

[Anonymous]

Are you using a Canon brand mount adapter? Are you able to select the High-Speed Continuous Shooting drive mode but you only get one shot when holding the shutter button?

Try resetting the camera and custom functions back to default.

[817stills]

Are you using OEM batteries? I've seen examples of using sub-par batteries, and it seems the high speed shooting capabilities are affected by the limited output of aftermarket batteries. Just something to check!

[AtticusLake]

It may be the lens, not the adapter.  Check your manual.  The R5C manual has a list of specific EF lenses which work for high-speed shooting.

[Waddizzle]

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@wlr0117 wrote:

Help!  I recently purchased a Canon R and am using the mount adapter for my EF lenses.  I can not do any high speed continuous shooting!... Is this not possible with the adapter??  I have confirmed the the Dual Pixel Raw is disabled already.  

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So what does it do, instead?  Does it take no photos, or is it just slow?