I have Nikon DX format gear. I recently purchased an old Nikkor-S 50mm F1.4 mechanical lens (for night sky work) REVISED: I photographed the same local automobile front grille and license plate using this lens and the 18-55 kit lens set at 50 mm. The results are essentially identical for resolution and contrast. The old lens was set to the same F-stop as the new lens used. FYI - the old lens is used in full manual mode on the Nikon D3300. The D3300 has the diaphragm stop down lever just like the old days - who knew? And that feature is used on all my current DX lenses. Since the D3300 has no idea what the aperture is on the old lens, I just take a photo, look at the histogram, and adjust the exposure as needed for another shot. Easy enough.