실버패스트에서 빨리 답변이 왔네요

when scanning negatives with MultiExposure, please make sure to h에이브이e the 
MultiExposure preview enabled. This can be done in the SilverFast Preferences
and is necessary because the negative-to-positive conversion is done based
on the preview scan data. When you scan using MultiExposure, but the preview
scan had been done without the ME preview before, the color cast you describe
occurs. This is especially the case for negatives. On slides the effect is there 
as well, but much less prominent.
멀티스캔시 푸른끼가 너무 돈다고 제가 본사에 메일을 보냈습니다. 생각보다 빨리 답변이 왔습니다.
멀티스캔할 할때 멀티스캔 미리보기를 활성화해야 하더군요.