
For a lot of mobile barcode users, reading small barcodes is a quite a  problem because most phone cameras are without macro mode or auto-focus. Apparently, such problems bother some Japanese users as well (especially if they are using non-Japanese phones) and they have a pretty good looking solution: attachable lens. For about 1000 yen, you can get a nicely designed lens for your barcode reading pleasure. Check out this 
Japanese blog for a demonstration (using X02HT and QuickMark) or head straight to an 
online store to get one.