Canon 67 Macrolite AdapterMacrolite adapters are rings used to attach macrolites to select lenses. The Canon Macrolite Adapter 67 attaches MT 24EX, MR 14EX or ML 3 to most 67mm filter size lenses. Not recommended for use with the EF 28 80mm f 3. 5 5. 6, EF 28 70mm f 3. 5 4. 5, EF 35 70mm F 3. 5 4. 5, or FD 28 55mm f 3. 5 4. 5, or FD 35 70mm f 3. 5 4. 5; already built into the EF 50 f 2. 8 Macro, EF 100mm f 2. 8, EF S 60mm f 2. 8 USM Macro, EF 100mm f 2. 8 USM Macro and MP E