Does Fstops smaller than F/2 make a significant difference? Currently have a Fuji 23mm f/2. Am looking to get another prime lenses and considering from Viltrox or Sigma. For everyday/travel use, leaning more to landscape photography. Ignoring all other factors, would f1.7, 1.8 make a significant difference from f2? And also f1.2, f1.4? I also understand that lenses with smaller Fstops are more expensive…

Unlabeled Fstops? I normally shoot digital but I was a bit confused when I got me 90mm lens for my pentax 6×7. The widest aperture on this lens is F2.8, with three clicks of the aperture ring to F5.6, and two to f8. Some of my digital lenses have an aperture ring and my camera tells me whatever half stop between F2.8 and F5.6 I am on, but I am confused because th…