Used: 300mm f/4 Rollei Schneider APO Tele-Xenar PQ Telephoto lens
The 300mm Schneider APO is one of the jewels of the Rolleiflex Hy6/6000 system. It's a beautiful sharp lens which draws with wonderful bokeh. The 1.4X extender was designed to work with the three fast lenses 80/2, 180/2.8, and the 300 APO and naturally performs quite well making a 420mm f/5.6 lens. I've actually used mine with two 1.4x Longar tele-extenders stacked together making a 600mm f/8.
Condition is very good overall. There are some minor dings in the lens shade which is attached, and some rub marks here and there. The tripod mount is nice but has some use marks. On the filter threads there's a little scratch but the filters fit without any trouble. Glass is excellent. The lens has been fully tested. Comes with both front and rear caps.
These used to sell for nearly $3k in average condition used several years back - now a relative bargain - use it on your DSLR too with adapters - it's an amazing optic - add the 1.4x Longar and have a really amazing tele!