The Summicron-R 90mm f/2 is considered favourite for the R system by many. It’s a Mandler design after all, known for extraordinary contrasty images, although quite soft and dreamy.
The lens has a metal hood built in, which I find genius and really well constructed. The hood is made of 2 parts, so it’s very compact when collapsed. The lens will also extend when focussing to the minimum focus distance, without the front element rotating.
The lens, back and front caps and original box
Cosmetic: Overall excellent condition.
Optical: Free from haze/fungus/scratches but it has a small dust inside the lens