Taken from their website www.gres.co.uk

"Here at we are happy to talk to you about any problem that you are having with any camera, lens or exposure meter. We can also undertake optical work such as fungus removal and optical polishing as well as optical coating. Most of our time is dedicated to repairing professional and specialist equipment for the trade, photographers and collectors - often modern, low value cameras are uneconomical to repair. Even so, whatever your camera or equipment problem, our workshop is fully equipped and we look forward to hearing from you. Overseas customers are always welcome."