The Conversion Adapter Kit for using 37mm DSLR/SLR Lenses on Galaxy S4 from Allputer.com takes Samsung’s latest high end smartphone’s built in camera to the next level. The adapter has been designed as a simple screw down clamp that fits on the back of the phone and provides a threaded socket for your existing 37mm lenses or filters. It also has a threaded tripod socket. The adapter comes in black or silver and is priced at $10.85. From the looks of it, it’s possible it might work with a variety of similarly sized smartphones.