Old School, New Thinking

Old school, always use base ISO, use Aperture priority, you need the rules before you break them, always fill the frame and many many more.

Are they helpful in today's camera's?

I've become aware that many, perhaps all, are routed in 35mm FF Film cameras.

 Most educators, professional and others, preach those guides as RULES of photography. 

Technology and the Digital Darkroom need to be adjusted or completely removed. You as a consumer of information must criticaly evaluate the "rules".

https://larrysphotography41.blogspot.com/2025/06/there-are-no-rules-in-photography.html?m=1