Canon SX40HS

Quote from: matt49 on 21 / January / 2017, 13:01:32

1. When I try make a Badpixed.bin I have received an error that says " Badpixed failed"

This is unfortunately a common problem.

From this link : Can not create badpixel.bin on Canon IXUS 220HS :

Quote from: reyalp on 03 / June / 2016, 00:30:31

Some cameras seem to have trouble creating badpixel.bin, for reasons that aren't well understood.

An alternative is to use DNG 1.3 with software that understands badpixel opcodes, or is able to interpolate over 0 value pixels. Most adobe software should handle DNG 1.3 opcodes correctly. In other software, you may find an option to fix "dead" pixels that does a reasonable job.

There is also a suggestion in the links to that thread to set your ISO at a low value when creating the file. Some people get this to work after several tries.

Other related threads :
badpixel.bin generation problems
300hs AND sx40hs Badpixel.bin failed.
Bad pixels

Quote

2. When I am working on ALT mode, a frame like magnifying' frame appear on screen and menu blanking so it makes it hard work on menu .

Another limitation. In this case, CHDK and the Canon UI do not "play nice" together. This tend to be less bad in Playback/Shot Review mode so try to avoid doing CHDK menu stuff with the camera in Shooting mode. Also, the frame is probably related to "focus tracking" - which I believe you can turn off in the Canon shooting menu.