The Schneider Kreuznach M-Componon 80 mm f/4 is a specialized macro lens made for large formats. The data sheet mentions 4x5", which probably means is covered withing its optimized magnification, which is specified as 1:1 to 7:1.  

All of the sample shots were made with this particular lens, so you can get a good impression of its abilities. 

Please don't hesitate to reach out to me if you have additional questions.

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