Nikon F90X  type_Lens & Sensor Cleaning B+W Circular Polarizer F-Pro MRC

B+W Circular Polarizer F-Pro MRC for lenses with 77mm filter threads

which means that it's not f1

That's Four Thirds

but image quality is quite good

Nikon F90X &nbsptype_Lens & Sensor Cleaning B+W Circular Polarizer F-Pro MRCThe Nikon F90X is a capable 35mm film SLR designed for the advanced amateur, with a big viewfinder, excellent lens compatibility (from AI to AF S) and a quick autofocus system. It has Nikon's Matrix metering system (including 3D Matrix with D type lenses) and shutter speeds from 30s to 1 8000s. In good cosmetic condition, with some cosmetic wear most notably on the baseplate and a de stickied back (that's a good thing). Accurate metering and shutter.