[Rollei] Why the 6-element lens for 3.5Fs

["Kotsinadelis, Peter (Peter)" <peterk >]

All,

It was mentioned in a previous post that F&H went to great lengths to
ensure the quality of the lenses received from Zeiss.
F&H tested each lens and allegedly rejected up to 50% that did not meet
their standards.  Could it have been Zeiss who decided on the added 6th
element for the 3.5 Planar?  After all it was said this element was
added to ensure the the lenses met the standards of F&H, so if Zeiss did
this it may have reduced the number of rejected lenses.  Just a thought.

BTW, those lenses rejected by F&H, where did they go? Back to Zeiss? Or
were they sold elsewhere?

Peter K

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