Designed for use with Voigtlander Bessa and Fuji X cameras, the Voigtlander Eyepiece Dioptre -1 is an eyepiece correction lens that will optimise your SLR viewfinder's sharpness in conjunction with your individual eyesight.
To find out what dioptre value you require, please consult with your ophthalmologist, optometrist or dispensing optician.