F 
		
				
			
		former member
Guest
The Sonnar is like a Roller Coaster. Double-Gauss lenses, more like a Family Sedan.It seems to me that this picture clearly shows the difference between old and new lenses, the disadvantages of the old ones, which are their advantages, but make their practical use difficult. Write that I think wrong and I will stop thinking so.
These thoughts came to me precisely when using Sonnars.
(The picture is very conditional and dimensionless, I dreamed about it about 10 years ago)
🤓
View attachment 4863396


From a book on Optics from the 1940s.
	

















