RF24-105mm f/4-7.1 IS STM is a perfect pair with the EOS RP that provides top-notch quality in a compact size. The lens extends and retracts as you zoom.
It measures 76.6mm in diameter and 88.8mm length when fully retracted. Weighing only at 880g, it is smaller and lighter compared to the RF24-105mm f/4L IS USM.