Image of the day

Captured by
Mark Schmidt

Sunspot Group AR3664

My Account

New to Astromart?

Register an account...

Need Help?

secondary mirror size - converting to inches

Started by dozer613, 11/30/2002 10:58AM
Posted 11/30/2002 10:58AM Opening Post
If I have a secondary that has a minor axis of 58mm, what would it be in inches? 2.28?
Posted 11/30/2002 01:47PM #1
Hi Marty

Yes. It's 25.4 mm per inch. Your 2.28 is rounded off but surely close enough. Good luck with your project.

Bob Polcyn