Leitz Leica M Mount Kilfitt Makro Kilar E 40mm f3.5 Alpa to M.

Very clear. Very little haze or cleaning marks. Giving sharp clear images. Focusses at 4 inches!

This is Alpa mount adapted via uncoupled detachable adapter to M mount and focusses to infinity. Very solid.

Remarkable. Clearly 4 inches hardly requires rangefinder coupling!