My measurement (and calculation) is as follows:

With minimum zoom (i.e., maximum throw ratio of 1.74), right at the end of PJ lens housing the image width is approximately 5.8cm (2.3") and at a distance from 15cm(5.9") away from the PJ lens housing, the image width is approximately 14.4cm (5.7") and when 8.5" (21.6cm) away, the width is 7.16"(18.2cm).

From my measurement the formula is as follows:

y (cm) = Image width from x (cm) distance off the lens housing

y= (x/353 * 202)+5.8

Is there anyone who successfully installed and enjoyed anamorphic lens with HC5500 or any projector with similarly recessed lens? Or, Should I have to change HC5500 for one with no or minimum recessed lens? Please help!! Thank you.