yukosteel

Good to know you found a workaround to that noise, because it is absolutely normal for Fuji X-T4. Camera has powerful electromagnets to put sensor "flying in the air" after you turned it on. When Image Stabilizer is disabled, sensor just remains "flying" in static position. When Image Stabilizer is enabled - electromagnets are reacting and shifting sensor to compensate movements and keep image stable. There is no way to turn that electromagnets off when X-T4 camera is operating. So you will always have that noise. In some cases magnets are producing additional sounds when stabilizing sensor position - that sounds are also normal, indicating that camera is operating properly. Personally, I prefer completely silent cameras, and it was the main reason for me to sell X-T4. But if you need Image Stabilizer - Fuji X-T4 is excellent tool.

Mini review article of Pergear 12mm F2 lens on Fujifilm X-E2s camera.

Thanks for posting that, it's good to know that excessive filter set weight is causing XF 27mm lens malfunctioning. Now I'm curious if rumored XF 27mm II lens will have different mechanical approach to address cases when multiple front filter weight is required to stay there.

Article on modifying aperture ring of Pergear 35mm F1.2 to introduce click-stops.

Few pictures from Pergear 35mm F1.2 with Fujifilm X-E2s:

Recently started to explore Pergear 35mm F1.2 lens on Fuji X. It's quite an interesting glass, and I'm going to discover more details about the internals soon by disassembling it. For now here's the initial review article of Pergear 35mm F1.2 on Fuji X-E2s camera. I'll keep updating it with more pictures and discoveries.

Had the same problem, and settings already had Command Aperture, but I forgot to rotate ISO dial to 'C'.

Yes it's normal, by design many Fuji lens have floating optics inside controlled by electromagnets, nothing to worry about.

Awesome! : ) Glad you managed to go further with disassembly. Great effort! Thanks for sharing your results.

You may want to check these articles and also direct CV 35mm F2 vs XF 35mm F1.4 comparison and make your opinion based on pictures. I used to shoot with color-skopar 35mm F2.5 as well, it's awesome tiny lens and its performance is very close to CV 35mm F2. 35mm lens comparison CV 35mm F2 on Fuji X-E2s CV 40mm F1.2 on Fuji X-E2s

It sounds like correct behavior of Fuji X camera. I'd recommend to check your AF-mode switch at the front of camera. If it's set to "S" or "C" then in manual F/SS/ISO you will see DOF changes. But if AF-mode is set to "M" then in manual F/SS/ISO mode you will only see exposure changes, but aperture remains wide open showing same DOF.

If you share some pictures, it may be easier to see what is wrong with lens. I'd also recommend to check if you have latest firmware updated on: camera, lens, TC.