> fstops are a ratio of focal length to aperture size This number in isolation is completely useless for telling anything about how the resultant image is goi

> fstops are a ratio of focal length to aperture size This number in isolation is completely useless for telling anything about how the resultant image is going to look. As opposed to, say, equivalent focal length, which tells you valuable information (about FoV) independently of any other spec. > I wish they would just give us the angle of view in degrees instead I agree, it would be nice if they just used invariant specs for everything. FoV angle and linear aperture diameter would be sufficient for most use cases.