This is a ZOOM variable external viewer with 35 50 8.5 90 105 135. It is lightly used and works perfectly. The glass is clean and clear with no haze, scratches or fungus. It comes in the original case.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.