I have recently sent my SWR for overhaul. The repairperson told me that when he checked the shutter, he has realized that there was an evidence of damage to the lens made by shutter blade. He said that this is usual to this particular camera, and there is nothing to worry about, thus this thought of damage will not cause any effect to the picture. I would like to know if it is true that SWC has such an inherent problem, and if it is true that the picture taken with such lens will have no effect. Thank you.