Significantly bigger image circle / better coverage than any APO 4X/0.20 I've owned (finite and infinity), most of which does not cover well not even a 4/3 sensor.
This is a pretty expensive optics. Can's find it on EO, maybe out of stock, but if my memory serves me right list price was about 2.400 EUR, quite more expensive than the Plan Apo 4/0.20.
Not easy to come by on the second-hand market.
Excellent cosmetically and optically, in original Nikon vial. Mounting thread is M25x0.75, standard for Nikon CFI objectives.
Asking price: 675 EUR + shipping.
Best,
- Macrero