Need to delete by separate type picture!
Please advice refer to my SX40hs at firmware number SX40hs-100i-1.0.0-1791-full_BETA. How to do if I want to delete some pictures directly by use “Erase-button” and then at display will show separate by type of picture that like --> Erase only JPG file , Erase only RAW file , Erase both JPG and RAW file ( If I don’t want use function “RAW develop”). On last month this function erase is work but now does not operate. How to set my camera like that?
There is no such setting or function in CHDK.
If you use the Canon delete function, the Canon firmware decides what to delete based on filenames. If it thinks files are "related" to jpeg, then it will delete them when you delete the jpeg. You can find some notes on this here
http://chdk.setepontos.com/index.php?topic=2045.msg18862#msg18862 (but this was based on a much older camera, yours might behave differently)
One additional thing that may cause confusion: In many cases the camera doesn't "see" files created by CHDK until you have rebooted. So even if it would normally delete CRW_nnnn.CR2 when you delete IMG_nnnn.JPG, it might not do this if you haven't rebooted since taking the picture.
If you want to delete raw or jpeg files individually, then use the CHDK file browser to delete the specific file.