Originally Posted by
john_tullamarine
Ought not to be too difficult.
Years ago, as John Colvin's legacy, we had one of the older left seat folk in the B767 with pentafocals - I can't bring myself to bifocals, how anyone can manage 5 segments is totally beyond me .....
Dr John Colvin was associated with an Optician Martin Hogan in all his aviation spectacle development for NASA and the aviation community.
Martin Hogan seems to still be practicing. He has a website.
Hogies Contact.
Unit 16/ 125 Highbury Road, Burwood 3125, Victoria, Australia Tel:+61 3 9650 9163