With thanks to Roflo for finding the relevant page in the CHDK documentation, I'll state here as an answer that you can with an Alpha version of CHDK firmware extensions for SX410, do manual focus on the SX410.

I might say "probably" as I personally can't vouch for that version of CHDK having a working manual focus, but I have used CHDK my self in the past on other Canon's and it's nifty.

Certainly manual focus will be a bit tricky with that camera, but it's a very useful feature for over-riding the AF system.

With thanks to Roflo for finding the relevant page in the CHDK documentation, I'll state here as an answer that you can with an Alpha version of CHDK firmware extensions for SX410, do manual focus on the SX410.

I might say "probably" as I personally can't vouch for that version of CHDK having a working manual focus, but I have used CHDK my self in the past on other Canon's and it's nifty.

Certainly manual focus will be a bit tricky with that camera, but it's a very useful feature for over-riding the AF system.