LENS ELEMENTS: 100 % optical performance. Clear, no scratches, no relevant haze, no fungus.
There are two or three ultra-thin, superficial and faint cleaning marks on the front element (not obvious), a bit of micro dust
and few extremely tiny air bubbles from manufacturing which is typical for the Trioplan 100.
(NOTE:
Almost every TRIOPLAN 100 has minimal haze that you will
see only if you search for it while looking under the right angle into a
bright spotlight.
I don´t
clean it since I don´t want to touch the delicate coatings of the
elements and because it has no impact on the pictures.)
MECHANICS: The focusing is smooth and exact. The preset aperture works nicely. The aperture blades are pretty clean and oil-free.