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Original: tt75opticaldesign.jpg (800x600 27.1KB)

<a href="https://malykh.com/img/2025-10/26-nMWF2KY6Vcx62B0mPs07MDOAPR4/tt75opticaldesign.jpg"><img src="https://malykh.com/img/2025-10/26-nMWF2KY6Vcx62B0mPs07MDOAPR4/tt75opticaldesign.jpg" style="width: 100%; max-width: 800px;"/></a>

Usage: TTArtisan 75/1.5 (M42x1/45.5): Homage to Biotar 75/1.5 (2025-10-27)