It seems the noise reduction on the Canon EOS R3 can not be turned off.

Based on sensor data collected by Photons to Photos, asobinet.com suggests the noise reduction on the Canon EOS R3 can not be turned off. They compared sensor data form the Leica M11 vs the Canon EOS R3. The image below is for the Leica M11, the image on top refers to the Canon EOS R3. Both images show the energy spectrum at all ISO settings. You can clearly see that the M11 sensor data is flat while the sensor data for the EOS R3 shows some prominent signal processing applied. According to asobinet, the signal processing is noise reduction.

Is this bad?

You can download the Canon EOS R3 user manual from Canon. Or you might read it online. A technical brochure about the EOS R3 is available. You can watch the EOS R3 live-stream again here. More Canon EOS R3 review stuff is listed here. We put together some interesting videos about the EOS R3, listed here. Be sure to check Gordon Laing’s in-depth review of the EOS R3, part 1 and part 2. Oh, and don’t forget to listen how the R3’s 30fps sound. Canon EOS R3 product description after the break.

Order in the USA ($5,999):
B&H Photo | Adorama

All Canon EOS R3 world-wide order links:

America: B&H Photo, Adorama, Amazon USA, Amazon Canada, Canon Canada, Canon USA
Europe & UK: Amazon DE, Amazon UK, Amazon IT, Canon IT, WEX Photographic, Canon FR, Canon UK, Canon DE