Fotodiox SMDV RFN-3 Wireless Radio Shutter Release

The SMDV RFN-3 (and its successor, the RFN-4) is a high-performance wireless radio shutter release system designed for professional photography, particularly for Nikon and Canon camera systems. This specific model is geared toward Nikon cameras like the D70s and D80, providing a reliable 2.4GHz frequency connection that works through obstacles like walls and corners with a range of up to 80-100 meters.

While the product is often distributed and branded in the United States and other Western markets by Fotodiox Inc., the brand and manufacturing origin lie with S.M Development Co. (SMDV), based in Busan, South Korea. SMDV is a specialized manufacturer of photography equipment including high-end lighting and remote triggers. The company is owned by Kim JongSeok and has established a reputation for durable, professional-grade tools that serve as high-quality alternatives to original manufacturer accessories.