A co-founder of the prestigious VII Photo Agency in 2001 (from which he later resigned in 2018)
notably embodied by Michael Schmidt's austere
The authors outline the mechanics of varying shutter mechanisms—including focal-plane and between-lens iris diaphragms—and explain the optical principles behind auxiliary attachments like tele-converters
same except ex-library with usual evidence otherwise fine
Stieglitz, Alfred. Alfred Stieglitz and the American Avant-Garde by William Innes Homer.. Untitled (Friends of Photography) A co-founder of the prestigiousNew York Graphic Society, 1977. 1st edition. Illustrated. 335 pages. Not to be confused with later reprints. Certainly one of the essential references on Stieglitz and the photographers and artists in his circle. Covers the Photo Secession (e. g. Edward Steichen and Paul Strand) and the other artists like Marin, Dove, Weber, Walkowitz, Hartley, O'Keeffe, de Zayas, et al. Fine hardcover with very good protected jacket that is price clipped, worn at