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Image Engineering 德国IE 爱莎(ESSER) is a company that has specialised itself in measuring digital cameras and developing of evaluation software. The knowledge we receive from these tests are transformed into our world wide popular brand ESSER TEST CHARTS, which is known for high quality in evaluating and measuring electronic cameras, such as photographic cameras, surveillance cameras, automotive cameras, cellphone cameras, video and broadcast cameras and scanner for more than 20 years. The company is represented by distributors in over 30 countries. We also take an active role in defining ISO standards. 上海研鼎是德国IE在中国的一级代理