I have used this lens to shoot images for the last several mini-reviews, an ongoing commercial project, and a number of upcoming Headfonia earphone/amp reviews. It is tack-sharp, feather-light, and cheap as chips.  Wide-open it is slightly sharper than my favourite enlarging lens, the 80/4 Rodagon, which goes used for 150-250$, and which came attached to the not-excellent Horseman VCC Pro. Wide open, it sits at f//5,6, however. At f/5,6, the two lenses are neck and neck. The Fujinon-EX goes for 70$ USD and down. It is slightly wider/larger than the Rodagon, and is easier to handle. Unfortunately, it is built to Fisher Price, not to Rodenstock, standards. It’s not just Fujifilm’s excess use of chintzy plastic parts. It’s their insistence on trying to be clever. The 360 degree rotatable mount lets light in to bounce around the inner lens. I had to pad it with gauze. Secondly, its ‚illuminated‘ aperture window lets even more light into the lens. I had to gauze, gaffer tape, and otherwise, patch it. it took me about an hour to get it in ship shape. Its machine quality is poor: parts get stuck much easier than the Rodagon…….

Source: ohm-image.net

6 Fujinon-EX 90/5 Ohm-Image