The Nikon FM is a fully manual, mechanical relic from the '70s and '80s – and the blueprint for the legendary Nikon FM2 ...
The taller the column, the better the lens performance. CA (Chromatic Aberration) is measured with any in-camera corrections ... a good result for a 35mm lens. Further correction can be undertaken ...
Or rather, how he's adapted them to fit onto a mirrorless camera ... video is the W-Nikkor 35mm f/2.5 and W-Nikkor 80mm f/4.