I am trying to connect a Samyang 135mm F2 lens to Canon R5 with a Sigma 2x converter between. They physically fit and it appears to take a photo which when I remove the SD card is totally black.
An error message comes up about a communications error.
Is there a way to get this combination to...
I am using a Canon EOS700D and trying to video but the camera cuts out after a few seconds. I am aware that this can happen without a fast enough SD card but this card is Transcend 45 mb/s 300x Class 10 32 Gb ?
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