Varies, in manual mode it does show the correct apertures as i vary the lens. In P mode the meter will adjust aperture accordingly as i move camera into varying light conditions but when looking into lens it is stopped down at f22, thus the viewfinder is dim. Therefore i think there is something wrong with the camera electronics that tell the lens to open aperture. When i use the depth of field preview i get an F-- message which i believe is normal.
I purchased the body and mb-10 battey pack, plus canon eos rebel 2000 and lens, plus a bunch of minolta lenses, flash amd sone polarizing filters for $60. My hope was that the n90 would work and i would sell the rest in ebay to recoup the 60. (the 2 minolta lenses are in E condition and should yield 35 alone.
I guess i may sell it for parts, recoup what i can and call it a day...
At least i gave my D200 and Nikon EM which work perfectly!