So I finally received the new Canon RF 100-500mm F4.5-7.1 L IS USM lens. Took it for a test run and shot about 40 photos. Everything seemed good. Purchased a clear lens filter and installed it. During installation, I noticed inside the lens that the components seemed to be floating and rattling around. Not just a little bit, like 1/4" or more, while the lens was off the camera. Re-installed the lens on the camera (EOS-R) and attempted to "re-park" the IS, but nothing seemed to change after I took the lens off. The same interior movement with the inside banging around. Is this normal? I can't imaging this is good for wear and tear on the lens. The insides will be banging around just while walking down the street. Anyone else notice this? Or is my lens defective? Just never had this happen before with a lens. Thanks.
Yes, I have. Same issue. It just seems odd to me that the interior components do not "park" when the lens is "off" the camera.
Follow up from Canon support: Dear Sir, Thank you for writing to us. My name is Exxx and I understand you have questions about the RF 100-500mm f/4.5-7.1L IS USM lens and I can assist. It is normal for the components inside the lens to move around. The image stabilization in this lens does not have a "parked" mode. The RF mount lenses use a more advanced image stabilization from the EF lenses. Please let us know if we can be of any further assistance. Thank you for choosing Canon. So there you have it..... Canon says it's "normal". Welp, I sure hope so.
so we now know RF stands for Rattle Focus? also explains the RF 800mm lens, its so you can be far enough away for the birds not to hear the lens coming
