No, this specific model (EF 70-200mm f/2.8L USM) does not feature Image Stabilization. It relies on its fast f/2.8 aperture to maintain high shutter speeds.
Yes, as part of Canon's L-series, it features professional-grade dust and moisture resistance, making it suitable for use in challenging outdoor environments.
Yes, you can use this EF-mount lens on Canon EOS R-series cameras (like the R5 or R6) using an EF-to-RF mount adapter with full autofocus functionality.
The Canon EF 70-200mm f/2.8L USM uses standard 77mm screw-in filters.