This is one of the rare and hard to find lenses for the Mamiya NC series. Over the last two or three years, I saw it up for auction on eBay only a very few times. The last auction took place in March 2002, and this time I simply couldn´t resist...
So here it is, the latest addition to my Mamiya NC collection. The lens comes with a special slip-on lens cap which says “mamiya/sekor” (not capitalized and using a slash instead of a dash). The writing and font look just like that on the TL/DTL series cameras.
I tested this lens myself and the optical performance is very good, much better than I had expected. It is already very good wide open and corner sharpness becomes also excellent when stopped down to f/8 or f/11.