Yes, it features professional L-series weather sealing, providing dust and moisture resistance for reliable use in harsh outdoor environments.
No, the RF 70-200mm f/2.8 L IS USM is not compatible with the RF 1.4x or 2x extenders due to its compact telescoping design.
The lens uses a standard 77mm front filter thread, making it compatible with most professional-grade circular filters.
No, this is a native RF-mount lens designed exclusively for Canon's mirrorless EOS R system and cannot be adapted to EF-mount DSLRs.