DIY Archival Print Washer – Design, Construction & Testing

A complete DIY project for creating a high-efficiency archival print washer (aPW) with Venturi aeration, calibrated flow control, and proven archival washing performance. IntroductionArchival washing of photographic papers is often misunderstood. A good washer does not simply “push water through”—it must efficiently exchange, dilute,…

Measuring Sharpness: What Lens Tests and MTF Curves Reveal

What do Thalmann’s lens tests tell us about lens sharpness and MTF curves, and how do they connect to the quiet power of large-format film? Factors behind Thalmann’s Future Classic lens selectionIn my previous post, I examined the factors that influence Thalmann’s Future Classic…

Insights on Large Format 4×5 Lenses

Explore the captivating world of large format lenses, where iconic names like Super Angulons, Symmars, and Grandagons embody decades of optical innovation. Discover how these masterpieces from brands such as Schneider-Kreuznach, Rodenstock, Nikon, and Fujifilm contribute to the distinctive, breathtaking beauty that defines large…