1) I would like to ask what lens profile I should use for Voigtlander 25mm f4P (M-mount) for M246? I just got this lens. Took it for a spin. I set the profile at 24 f2/8 11878/11898 and got very poor IQ. Certain part of the pictures are fuzzy, with quite heavy shading on both sides. I set Lr's lens correction at Voigtlander 25mm f4 but the shading over-corrected. 2) Does a LH-1 lens hood work better than the little round one that comes with the lens? Thanks for your replies.