The 140mm f/4.5 Macro features outstanding resolution at all distances and apertures, and adjustable flat field correction. The built-in floating element system allows correction of edge sharpness for copy work down to 1:1 life size with optional extension tubes. The lens will focus from infinity to 1/3 life size magnification with the RZ camera's built-in bellows. Equivalent to 68mm in 35mm format.