Desk/workbench mount for the microscope camera

A holder above the worktop for a microscope camera from aliexpress, described as 36Mpix (it will probably fit others where the lens is of this type, on C-mount).camera bought here: https://www.aliexpress.com/item/32827892872.html plus a zooming lens https://www.aliexpress.com/item/32470898806.html x0.5 (because I don't want to see bacteria, only smd components)The lens has diameters:- bottom ring on the camera body 43mm- lens right when screwed into the 39mm camera- lens retaining ring (bigg