Quote:
Originally Posted by Stefan Buda
The front flange also has a silicone rubber O-ring that pushes the mirror gently into contact with the bare aluminium flange on its back side. I may add a very thin shock absorbing layer, but definitely not something as rough and agricultural as cork.
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Just like in the case of the machined grooves in your corrector lenses arrangement how do you work out the gaps or compression zones dimensions needed in your mirror mounting when you have glass in direct contact with aluminium? When temperature changes, too much and it gets lose, too tight and the glass will be pinched.