Ealing Catalog, Inc. has re-emerged to continue a hundred-year tradition of providing customers with high-quality optical and mechanical components and instruments. Ealing was the first to produce a comprehensive catalog ......Ealing Catalog, Inc. has re-emerged to continue a hundred-year tradition of providing customers with high-quality optical and mechanical components and instruments. Ealing was the first to produce a comprehensive catalog of standard components. Most Ealing products are carried in stock for immediate delivery. Our knowledgeable staff is ready to help you meet the demands of your photonics application. Give us a call at 1-800-295-3220.