Lot 2 and Lot 3 Mirror Clear Apperture Size - QUESTION: In the Lot 2, the requirement are for a 800-actuators class DM.The REQ-7 Mirror Clear Apperture shall be 30mm to 38.1mm. If 800 actuators, the inter-actuators pitch will be < 1mm. In the Lot 3, the requirement are for a 400-actuators class DM. The REQ-7 Mirror Clear Apperture shall be 40 mm to 50.8 mm. If 400 actuators, the inter-actuators pitch will be > 2mm. We remark that, on Lot 1 when crossing the requirements of Clear Apperture with the respective class DM (number of actuators) of every other DMs for Lot 1 and Lot 4, it results of a inter actuator pitch of 1.5mm. Could you clarify if all these requirements are correct ? Are you looking for different actuator pitches or is there a discrepancy along these requirements ? Can you confirm the number of actuators (DM Actuator Class) and clear apertures for Lot 1, Lot 2 and Lot 3 ? Thank you ANSWER: in Lot 1 and Lot 4 the requirement concerning the Mirror Clear Aperture Size are correct. In Lot 2 and Lot 3 they have been erroneously exchanged, which means that what it is written in REQ 7 Mirror Clear Aperture Size of Lot 2 is instead applicable to Lot 3 and, vice versa, what it is written in REQ 7 Mirror Clear Aperture Size of Lot 3 is instead applicable to Lot 2. Sorry for the swap and thanks for pointing that out.