The Z-Finder Extender Frames allow you to further adjust the focal length of the Z-Finder by semi-permanently stacking the frames via a snap fit on to the skirt of the Z-Finder until the LCD screen is in focus for you. This is primarily for people who are farsighted or who wear reading glasses. This item includes 4 extender frames; all 4 extender frames will not be needed for everyone. It is best to test how many frames you need by stacking one at a time until the LCD is in focus for you. In order for the Extender Frames to lock properly, a new skirt is needed on the Z-Finder. If you ordered your Z-Finder prior to Jan. 25th and you are looking to get the extender frames, please contact sales@zacuto.com
The Extender Frames work on both the Z-Finder Jr and both Z-Finder Pro models.