What is the difference between the ExpoDisc “Classic” and the current ExpoDisc model?
The “Classic” ExpoDisc is the first design ExpoImaging produced for retail sales and distribution. The ring mount is made of a durable, black, molded plastic material. The “Classic” model has been discontinued. Current model ExpoDiscs incorporate significant improvements in design and materials. The filter ring has been upgraded to a more durable black anodized aluminum that includes a mounting system consisting of 3 tiny, spring loaded ball bearings. New testing and calibration equipment also enabled us to improve the formulation of the materials used in the construction of the ExpoDisc, resulting in improved neutrality and performance. The new design and materials significantly improve the durability, consistency and fit of the new ExpoDisc over the previous plastic, “Classic” design.
