1. K

    Lens Doesn't Open to 3.5 - Nikkor 18-140mm

    i have a Nikon D5100 and a 18-140mm 3.5-5.6g in manual mode, aperture priority, doesn't matter, I can't open to f3.5. the camera shows (view finder/lcd display) 5.6 as the lowest what am i doing wrong?! can someone help, plz? thanks!!