Image quality test results have been added to the Canon RF 14-35mm F4 L IS USM Lens page.
Note that Canon mandates distortion correction for this lens in-camera (in the viewfinder) and in Canon Digital Photo Professional (DPP).
Here are some comparisons to get started:
Canon RF 14-35mm F4 L IS USM Lens compared to Canon RF 15-35mm F2.8 L IS USM Lens
Canon RF 14-35mm F4 L IS USM Lens compared to Canon EF 16-35mm f/4L IS USM Lens
The Canon RF 14-35mm F4 L IS USM Lens is available for order at B&H | Adorama | Canon USA | Amazon USA | WEX
Rent the Canon RF 14-35mm F4 L IS USM Lens from Lensrentals.
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