Using RTI to investigate a possible cross base in the medieval graveyard in Lucan village.

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Take a look at my recent short video (4.06) update on the *possible* medieval high cross base, recently identified in the medieval graveyard in Lucan village (Church of the Blessed Virgin – video by ItsmyIreland) behind O’Neill’s pub.

We decided to use a night-time photographic technique called RTI (Reflectance Transformation Imaging) to investigate if there were any traces of carving (such as interlace) on the granite base.

Many thanks to Stephen Callaghan for teaching me how to use RTI. The software is free and open source, so if you have a good camera, a torch and a black marble, you’re good to go! It is such a useful technique for uncovering trace details of carving that we hope to extend its use to scanning some of the illegible gravestones in the graveyard over the next while. Please email us at oldlucan@gmail.com if you would be interested in participating?

Edit to the video: I mention a Samuel Taylor in 1837 as describing a cross – my error, this was in fact Samuel Lewis, who gives a detailed description of Lucan at that time.

by Helen Farrell, SOL with the assistance of Stephen Callaghan.

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