This is an X-Rite transmission densitometer that includes a reflection probe, documentation, and calibration target. If you know what this is you know they only become available rarely. Buy it before I change my mind. Bargain priced at $200, no dickering. No other photos available, come see it in person. If you want to create digital negatives or work with alternate processes this tool is indispensable. This is a fragile instrument that cannot be safely shipped so in person sale only.