Format 35 mm — Wikipédia

135 film - Wikiwand

A Table of 35mm FFE Equivalents for Popular Large Format Lenses and Formats : r/largeformat

Understanding Medium Format vs 35mm Lenses and Equivalent Focal Lengths » Shoot It With Film

Guide To Film Formats - 35mm, 120, Large Format - Parallax Photographic

Film Frame Dimensions

Anamorphic format - Wikiwand

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Pentax - - The free camera encyclopedia

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APS-C - Wikiwand