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Just checking... Diameter of the M1 mirror at NOT:   (in mm)
Please note:

Your information is only used to a) authenticate yourself to the NOT OB Generator and b) enable the OB Generator and other NOT OB related software programs to contact you by email with information concerning your OBs. Nothing else.

The communication between your browser and our server is not not over a secure connection (SSL), and we store passwords internally in clear text. Therefore, for your own security, we strongly suggest you choose a password that you do not use anywhere else.

Should you forget your password or wish to change any of the information above, please contact

If you have registered an OB account in the past, PLEASE do not register twice or more times. Contact us to fix any issue.

Back to top Last modified: October 04 2019