Alan Rockwood (Redacted sender alanrockwood2000@xxxxxxxxx for DMARC) wrote: > When you say the not interchangeable I assume you mean they are not > functionally > interchangeable. It seems that physically the nose pieces (my term, not > x-rite's term) > can be interchanged. Hence, the UV filter nose piece fits on a body I own > that is not > matched to the UV filter. Yes. It's very similar to the Spectrolino in that regard, although I don't know of them offering D65 or Polarized versions. > By the way, it would be interested to know what the differences in the bodies > are > (UV-filter or not.) I suspect they are hardware identical, but differ in the > ROM > contents. Yes. I imagine this may well have been a cost constraint (EEProm size, calibration time), as well as positioning against the more expensive Spectrolino, which (I think) overlapped the initial availability of the i1pro. With the absorption into X-Rite, something like the eXact fills the role of a more accurate & flexible instrument now. Graeme Gill.