How To Do More With Your Camera Diopter
What Is a Diopter? In the most technical sense, a diopter is a measurement of refractive power on a lens that is equal to the reciprocal of the focal length. Pretty confusing, right? Here’s a better way to understand it. A diopter (strictly in the sense of how it applies to a DSLR or SLR camera) is a focal adjustment on the viewfinder that determines how well you see the image and information projected on the viewfinder....