Our manufacturer of flat light panels also makes viewers. They felt that slide viewers should be more convenient and the idea of putting a slide viewer into your shirt pocket was their design brief.
The resulting range of two viewers, the SV4 (35mm) and SV5 (120mm), still makes us admire the technology put into making them a reality. Admittedly, you can only view a single slide at a time but we guarantee that once you use them for the first time it will change the way you think of a slide viewer forever.
The SV4 needs two MN2400 batteries and the SV5 takes two MN1500's.