Ch'en has always thought that mini cameras, which are easy to carry and hide, are ideal for snapping street scenes, and he has worked hard to overcome the inevitable graininess of their pictures.
超小型的景框民國六十八年，陳彥堂在台北永康街創設「久明攝影社」後，同時擔任了「台灣省攝影學會超小相機研究中心」的幹事。他一直認為超小相機易於攜帶及隱藏，是街頭速拍的最佳工具，對於如何克服「微粒」顯象，他下了許多工夫研究。