I thought some, especially Canon users, may be interested in my latest blog post :
https://photography.grayheron.net/2021/ ... raphy.html
If you are not lucky enough

to be a Canon shooter, able to access Magic Lantern or CHDK, you can still use the odds rule, ie select your overlap hyperfocal (H) and focus at 3H, H, H/3, H/5 etc
Remember that H is easy to estimate in your head, using the Rule of Ten, eg
https://photography.grayheron.net/search?q=Rule+of+ten