As you know , I am brute forcing to make my lens.
I found a excellent design from zeiss which most important part could be manufactured with telescope mirror making method.
I contacted with a glass selling company which will help me to find help from schott glass makers.
I think a piece of lak 7 will work for it.
How can we make it easier to manufacture ? Is it possible to use fron element alone or with a ready made achromat or zeiss aspherical ready lens ?
Just look its drawing , its willy merte 1935 design.