The Most Underappreciated Trend in Lens Design Right Now
For roughly two decades, the standard zoom lens started at 24mm. Before that, it started at 28mm or even 35mm. The 24-70mm f/2.8 became the default in the early 2000s and stayed there so long that the starting focal length became invisible. 24mm was simply where a standard zoom began, and nobody questioned it because there was nothing to question.