We use the Canon R7 for gimbal work and as a B camera. It is small and compact, but note that is does not have an inbuilt ND filter. (Nor flash).

Canon R7 bodyCanon R7 body back

So to set the exposure on the EOS R7 for video work, if we had an external ND filter attached to the lens...

  • Set the ISO to 800
  • Set Shutter to 180 deg (or 1/50 shutter speed for 25 frames)
  • Set FPS depending on type of shot.
  • Set the aperture (F stop) to the desired DOF.

Then manually adjust the external ND filter.

If No ND Filter - we can adjust the ISO to set the exposure.

Specifications

Max resolution 6960 x 4640
Image ratio w:h 1:1, 4:3, 3:2, 16:9
Effective pixels 33 megapixels
Sensor size APS-C (22.2 x 14.8 mm)
ISO 100-32000
Base Native ISO  800 for CLog3. (100 for other settings) 
Custom white balance Yes
Image stabilization Sensor-shift
Optics & Focus
Autofocus
  • Phase Detect
  • Multi-area
  • Center
  • Selective single-point
  • Tracking
  • Single
  • Continuous
  • Touch
  • Face Detection
  • Live View
Number of focus points 651
Lens mount Canon RF
Screen size 3
Touch screen Yes
Video Modes
  • 3840 x 2160 @ 30p / 170 Mbps, MOV, H.265, Linear PCM
  • 3840 x 2160 @ 23.98p / 170 Mbps, MOV, H.265, Linear PCM
  • 3840 x 2160 @ 30p / 85 Mbps, MOV, H.265, Linear PCM
  • 3840 x 2160 @ 23.98p / 85 Mbps, MOV, H.265, Linear PCM
  • 3840 x 2160 @ 60p / 340 Mbps, MOV, H.265, Linear PCM
  • 3840 x 2160 @ 60p / 170 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 120p / 180 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 120p / 100 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 60p / 90 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 60p / 50 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 30p / 45 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 23.98p / 45 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 30p / 28 Mbps, MOV, H.265, Linear PCM
  • 1920 x 1080 @ 23.98p / 28 Mbps, MOV, H.265, Linear PCM
  • 3840 x 2160 @ 30p / 120 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 23.98p / 120 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 30p / 60 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 23.98p / 60 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 60p / 230 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 60p / 120 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 30p / 120 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 23.98p / 120 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 30p / 60 Mbps, MOV, H.264, Linear PCM
  • 3840 x 2160 @ 23.98p / 60 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 120p / 120 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 120p / 70 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 60p / 60 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 60p / 35 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 30p / 30 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 23.98p / 30 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 30p / 12 Mbps, MOV, H.264, Linear PCM
  • 1920 x 1080 @ 23.98p / 12 Mbps, MOV, H.264, Linear PCM
Microphone Stereo
Storage types 2 x UHS-II SD card slot
USB USB 3.2 Gen 2 (10 GBit/sec)
USB charging Yes
HDMI Yes (Micro)
Microphone port Yes
Headphone port Yes
Wireless Built-In 2.4GHz
Battery  LP-E6NH
Battery Life (CIPA) 660
Orientation sensor Yes
GPS None
ND Filter None
False Colour None

A great reference video to watch with some setup tips for the R7: