Final answer:
The Stirn waistcoat camera was innovative for its time, providing the advantage of concealment within a waistcoat for candid photography, rather than improving technical aspects like resolution or battery life.
Step-by-step explanation:
The Stirn waistcoat camera was an innovative photographic device when it was introduced. It offered several advantages over previous cameras, but it's important to note that the specifics listed such as higher resolution, longer battery life, greater durability, and enhanced zoom capabilities may not apply directly, as the Stirn waistcoat camera primarily provided improvements in terms of concealment and portability. Early cameras did not have batteries or sophisticated zoom lenses, instead, the Stirn waistcoat camera's novelty was its ability to be concealed within a waistcoat, allowing for candid photography without drawing attention, which could be considered a form of 'durability' in the context of maintaining the integrity of the photographer's cover. While it's not particularly known for higher resolution, given the technical limitations of the time, it allowed photographers to capture images in a more discreet manner.