What is a disadvantage of using lathe cutting for lens production?

Lathe cutting for lens production has the disadvantage of slower production rates compared to other methods, such as molding or casting. This is primarily due to the manual nature of the lathe cutting process, which requires careful handling and intricate setup for each lens produced. Each lens must be individually shaped and polished using the lathe, which inherently makes the process more time-consuming.

While options such as high precision and accuracy, lower manufacturing costs, and the ability to produce complex shapes are advantages of lathe cutting, the slower production rate remains a significant consideration for large-scale manufacturing. In environments where high volume and efficiency are critical, this slower method may hinder meeting production demands effectively.