The Z-Finder Extender Frames allow you to further adjust the Z-Finder focal point by stacking the frames semi-permanently using a snap fit on the Z-Finder skirt until the LCD screen is in focus for you. This is mainly for people who are farsighted or who wear glasses to read. This item includes 4 extender frames; the 4 extender frames won't be necessary for everyone. Better to test how many frames you need by stacking one at a time until the LCD is in focus for you.

Three extender frames are included with every DSLR and EVF Z-Finder.