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Mark Gavin

I am an amateur photographer. Most of my work is with flowers; but, I am also starting to work on portrait photography. During the day I am Chief Technology Officer at Appligent
My Photography Website and Blog

I started taking pictures in the 60's with my mothers Kodak Duaflex camera. I still enjoy using the Duaflex; but, today most of my work is digital.

My Pinhole Optics Designer web application for designing Pinholes, Zone Plates, Photon Sieves and Pinhole Sieves can be found at

For those interested in learning languages; my iTalki link is


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  • Lansdowne, Pennsylvania, USA