I bought a Nikon 50mm F1.8 recently. Noticed the lens has front focus. Please refer to a very simple test shot below. I sent the lens to NSC but I am told this lens is not designed for DSLR and therefore is expected to have front focus. They performed a test and had confirmed my observation. And NSC told me that this FF cannot be calibrated.
Anyone has similar experience? Any advice?
Simple test below, camera mounted 45degree to the paper plane, about 30 cm away.
Focus point at x but the sharpest line turned out to be about 3 lines(about 10mm) nearer to the camera.