OM-10 will hold up to Winder 1 or 2. The motor drives do not work if attached (there is a blocking diode). At the same time the 10 came out, Canon introduced their all plastic and heavier AV-1, Nikon dumped the EM on the market. OM-g is better but still suffers from oil on the magnet. OM-10 is okay as a hobby camera but would not rely on it. A good used 2N will serve you better and longer. JMO. John