This simple DIY rig is a cheap alternative to a probe lens
Is It Worth Buying a Probe Lens in 2022?
Laowa has released a 0.7x focal length reducer for its 24mm f14 probe macro lens
Astrhori 28mm F13 Macro 2x Probe Lens With Built-in Ring Light For Sony E Canon Rf Ef Fuji Xf Nikon Z Zf Pl Mount Macro Lens - Camera Lenses - AliExpress
0.7x Focal Reducer for Probe Lens - Laowa Cinema Lenses