Dr. María G. Salazar, Institute of Photographic Sciences, Calle de la Luz 12, 28012 Madrid, Spain. Email: mgsalazar@ips.edu.

Andrea Hernosa¹, Luisa Henano², Dr. María G. Salazar³

Andrea Hernosa & Luisa Henano: A Comprehensive Study of a Full‑TTL Photoset

¹ Department of Visual Arts, Universidad de la Imagen, Mexico City, MX ² Independent Photographer, Buenos Aires, AR ³ Institute of Photographic Sciences, Madrid, ES Abstract The present paper investigates the creative collaboration between Andrea Hernosa and Luisa Henano, focusing on their recently released Full‑TTL Photoset (2025). Using a combination of technical analysis, visual semiotics, and photographer interviews, we examine how Through‑The‑Lens (TTL) metering techniques influence compositional decisions, tonal range, and narrative cohesion across the series. Results reveal that the strategic exploitation of full‑frame TTL exposure controls enables a dynamic interplay between light, subject, and environment, establishing a distinctive visual language that bridges documentary realism with expressive abstraction. The study contributes to the broader discourse on contemporary photographic practice and offers methodological insights for photographers seeking to harness TTL capabilities in complex lighting scenarios. Keywords Andrea Hernosa, Luisa Henano, TTL metering, full‑frame photography, visual narrative, exposure control, photographic collaboration. 1. Introduction 1.1. Background Through‑The‑Lens (TTL) metering, originally introduced in the 1970s for automatic exposure, has evolved into a sophisticated toolset allowing photographers to read light directly via the camera’s sensor. Modern TTL systems (e.g., multi‑segment, spot, and center‑weighted meters) provide real‑time feedback on luminance, facilitating precise exposure decisions in challenging environments.