I recently purchased a brand new RF 600mm f/4, there's some audible rattling from inside the lens when there isn't a camera connected. I connect a camera and turn it on, the rattling stops. Camera goes off and gets detached, back to rattling. Is this normal?
Are you shaking this lens. The rattling you may be hearing is the lens Image Stabilization. Does the lens have IS (Image Stabilization). This is usually denoted by "IS" in the lens name.
-Demetrius
Current Gear: EOS 5D Mark IV, EF F/2.8 Trinity, EF 50mm F/1.8 STM, EF 85mm F/1.8 USM, 470EX-AI & 600EX II-RT
Google RF lenses IS and you will find that this is a characteristic of most of the new RF lenses equipped with image stabilization. It is the way Canon designed them with an IS system that isn't locked or heavily damped when turned off.
Rodger
EOS 1DX M3, 1DX M2, 1DX, 5DS R, M6 Mark II, 1D M2, EOS 650 (film), many lenses, XF400 video
I think your lens is fine. Its the IS. The RF lenses are built differently. They rattle. If the lens and IS functions normally when the lens is connected to a camera and powered with IS on, its fine. 😀
~Rick Bay Area - CA
~R5 C (1.0.6.1)~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8 ~CarePaks Are Worth It
