Does anyone have any experience with a Nikkor P(?) 105mm/2.5 converted to AI? With an FM2? As a primary portrait lens? There seems to be a few of them around, some converted, some not. Is there any way to figure out if one of these lenses was converted by Nikon or using one of the earlier kits provided by Nikon (either of which would be better than taking a chance on a hobbyist in his basement)? Any help is appreciated. Keith