Ohara Corp in Japan has informed us that they have finished manufacturing the C2 and C3 blanks and are finalizing them for shipment. Arizona Optical Systems (AOS) has been awarded the glass polishing contract for these two lenses and their preparations to receive the blanks are already underway. The first task will be to grind the two lenses to near net shape before they start the polishing process.
The image to the left is the C2 blank. This lens blank is 852mm diameter x 191mm thick.