Not all apertures with the same f-stop are the same size, so it’s a mistake to think that an f-stop tells you directly how big an aperture is. In fact, f/8 on one lens might even be bigger than f/2.8 on another. Here’s why.
Keep reading »Not all apertures with the same f-stop are the same size, so it’s a mistake to think that an f-stop tells you directly how big an aperture is. In fact, f/8 on one lens might even be bigger than f/2.8 on another. Here’s why.
Keep reading »